PH Infrared Patio Heaters Overview

Outdoor spaces are meant to be enjoyed, but cooler temperatures can quickly change how comfortable a patio feels. Whether it is a restaurant patio, resort terrace, residential deck, golf course patio, rooftop lounge, or covered outdoor gathering space, having a reliable source of heat can make a significant difference in how long the space can be used throughout the year.

Calcana's PH Series infrared patio heaters are designed specifically for these environments. Using gas-fired infrared heating technology, the PH Series delivers targeted radiant warmth to people, surfaces, furniture, and other objects within the heating area rather than primarily heating and circulating the surrounding air. This approach makes infrared heating particularly well suited to outdoor spaces where conventional heated air can be difficult to contain.

The PH Series includes multiple configurations designed for different patio sizes, layouts, mounting arrangements, and environmental conditions. Models are available in different lengths and output levels, with options including standard-output and high-output heaters as well as stainless steel and marine-grade stainless steel construction.

For homeowners and businesses considering an outdoor heating system, understanding the PH Series is a good starting point. From how infrared heat works to mounting options, controls, materials, applications, and installation considerations, there are several factors to consider when selecting the right heater for an outdoor space.

What Is the Calcana PH Series? An Overview of Calcana's Gas-Fired Infrared Patio Heating Solutions

The PH Series is Calcana's line of gas-fired infrared patio heaters designed for residential, commercial, and hospitality applications.

These heaters are intended to provide comfortable radiant heat in outdoor and partially enclosed environments where maintaining a consistent air temperature can be difficult. Instead of depending on a fan to move heated air throughout the space, infrared heating transfers energy directly to people and surfaces within the heater's coverage area.

This makes the PH Series particularly useful for patios and other spaces where the sides may be open or where doors, windows, and changing outdoor conditions can allow heated air to escape.

Calcana currently offers PH Series models ranging from shorter 5-foot and 10-foot configurations to larger 15-foot and 20-foot models. Depending on the model, heating outputs can reach up to 75,000 BTUs.

The PH Series is designed to provide flexibility rather than requiring every patio to use the same heater configuration. The right model depends on the size and layout of the space, desired coverage, mounting arrangement, environmental conditions, and other project requirements.

How Does Infrared Patio Heating Work?

To understand the PH Series, it helps to understand the difference between radiant heating and conventional forced-air heating.

A forced-air system heats air and then moves that heated air around a space. This approach can work well in enclosed buildings, but it becomes more challenging when the space is open to the outdoors. Warm air can move away from the area where it is needed, particularly when there is wind or when doors and openings are frequently used.

Infrared heating takes a different approach.

Calcana's infrared heaters emit radiant energy that travels outward and transfers heat directly to people, surfaces, furniture, floors, and other objects within the heating area. The result is a form of targeted heating that does not depend on filling the entire outdoor space with warm air.

This is one reason infrared heating works particularly well for patios.

Rather than attempting to heat an entire volume of outdoor air, the heater can provide warmth to the areas where people are actually sitting, standing, dining, or gathering.

The PH Series is designed around this principle, providing focused radiant warmth for outdoor environments.

Why Infrared Heating Works Well Outdoors

Outdoor heating presents a unique challenge. There is no practical way to completely contain heated air on an open patio.

If you use a conventional system that relies primarily on heating air, some of that heat can quickly move away from the intended area. Wind and outdoor airflow can make maintaining comfortable conditions even more difficult.

Infrared heating does not depend on keeping a large volume of warm air trapped in the space.

Instead, the radiant energy is directed toward the people and surfaces within the heating zone. This allows the PH Series to provide targeted comfort even in open or breezy outdoor environments.

That does not mean outdoor conditions become irrelevant. Wind, temperature, patio construction, ceiling height, furniture placement, and enclosure all influence how a heating system should be designed. However, the way infrared heating transfers energy makes it a particularly practical technology for outdoor applications.

PH Series Heating Output

One of the most important considerations when selecting a patio heater is its heating output.

The PH Series includes models designed for different levels of heating demand. Some standard-output configurations and high-output models are available, with certain models offering adjustable input ranging from 50% to 100%.

This modulating capability allows the heater to operate at different output levels rather than simply being limited to a single maximum setting. That can be useful as outdoor conditions change throughout the day or evening.

For example, a patio may require less heat during a mild fall afternoon than it does on a colder evening. Being able to adjust the heat output provides more control over the comfort of the space.

The PH Series includes models capable of outputs up to 75,000 BTUs, depending on the configuration.

It is important to remember that BTU output alone should not determine which heater is right for a patio. Heater length, mounting height, layout, coverage requirements, enclosure, climate, and the number and arrangement of heaters all need to be considered.

PH-40, PH-50, & PH-75 Configurations

The PH Series includes several model configurations, giving homeowners and businesses options for different patio layouts.

The current Calcana Canada lineup includes models such as the PH-40A, PH-40 HO, PH-50A, PH-75A, and PH-75 HO. These are available in different lengths and output configurations.

The PH-40 configurations include shorter options, including a 5-foot high-output model and a 10-foot standard-output model.

The PH-50A is offered in a 15-foot configuration, making it suitable for longer heating zones.

The PH-75 family includes both standard-output and high-output configurations, including 10-foot and 20-foot options. The PH-75 HO 10-foot model, for example, has a modulating BTU range of 37,500 to 75,000 BTUs.

These different configurations allow the heating system to be matched more closely to the physical dimensions and intended use of a patio.

Standard Output vs. High Output

Another consideration within the PH Series is whether a standard-output or high-output configuration is appropriate.

A high-output heater is designed for applications where greater heating capacity is required. This can be useful for larger or more demanding outdoor spaces.

Standard-output models can provide another option where the heating requirements and layout call for a different configuration.

The correct choice depends on the specific application rather than simply choosing the heater with the highest BTU rating.

For a commercial patio, for example, multiple appropriately sized heaters may provide better coverage than simply installing one extremely powerful unit. Creating multiple heating zones can allow different sections of a patio to receive targeted warmth based on how the space is arranged.

A professional sizing assessment can help determine which configuration is appropriate for the space.

Stainless Steel Construction

Outdoor heating equipment needs to withstand exposure to changing weather conditions.

The PH Series is available in stainless steel construction, with current Calcana models using 304 stainless steel for many configurations. Stainless steel provides durability and corrosion resistance while maintaining a clean appearance that works well in residential and commercial patio environments.

The material also complements the type of modern architectural environments where permanent patio heaters are often installed.

Rather than looking like temporary equipment placed in the middle of a patio, a properly mounted PH Series heater can become part of the overall design of the space.

This is particularly important for restaurants, hotels, resorts, and residential patios where aesthetics are an important part of the outdoor environment.

Marine-Grade PH Series Options

For locations exposed to particularly demanding environmental conditions, Calcana also offers marine-grade PH Series configurations.

The marine-grade models use 316 stainless steel, which provides additional corrosion resistance for environments where moisture and salt exposure are significant concerns.

The PH-75 HO 10-foot marine-grade model, for example, uses 316 stainless steel and is designed for coastal, marine, and high-humidity environments.

This can make marine-grade construction worth considering for waterfront restaurants, coastal properties, marinas, resorts, and other environments where conventional materials may face greater exposure to corrosive conditions.

The choice between standard stainless steel and marine-grade stainless steel should be based on the environment where the heater will operate.

Flexible Mounting Options

Another important feature of the PH Series is its range of mounting possibilities.

Outdoor patios can have very different layouts. Some have solid exterior walls, while others have overhead structures, pergolas, beams, or architectural features that provide potential mounting locations.

Calcana offers mounting options for wall and overhead installations, including horizontal and angled configurations.

Wall mounting can be useful when the patio layout provides a suitable structural wall and the desired heating zone is located away from that wall.

Overhead mounting can be useful for patios where the heater can be positioned above seating and dining areas. It also keeps equipment away from walkways and helps preserve valuable floor space.

The mounting configuration should always be selected based on the heater model, structure, required clearances, mounting height, and manufacturer's installation requirements.

Keeping the Patio Floor Clear

Permanent mounting offers another practical advantage.

Portable heaters can occupy valuable patio space and may need to be moved when furniture arrangements change. Permanently mounted infrared heaters remain in their designated positions, leaving the patio available for tables, chairs, walkways, landscaping, and other features.

For commercial patios, this can be particularly useful because every part of the available space may need to serve a purpose.

Overhead mounting can keep heating equipment above guests while maintaining clear pathways below. Calcana's mounting systems are designed to securely position compatible heaters while maintaining the intended heating coverage.

For residential patios, the same principle applies. A permanently mounted heater can provide warmth without becoming another piece of equipment that needs to be stored or moved whenever the patio is being used.

Variable Heat Control

Outdoor temperatures can change significantly throughout the day.

A patio that feels comfortable with moderate heating in the early evening may require more heat later as temperatures continue to fall.

The PH Series offers variable heat control, with Calcana describing a range from 50% to 100% depending on the model and control configuration. This allows users to adjust the heat output based on current conditions and comfort requirements.

This control can be particularly useful for commercial patios where operating conditions change throughout the evening.

Rather than treating the heater as an all-or-nothing system, adjustable output allows the heating level to be matched more closely to the actual conditions.

Residential Applications

Although the PH Series is well suited to commercial patios, it can also be used in residential outdoor spaces.

A homeowner may want to use a patio for outdoor dining, entertaining, relaxing, or spending time with family during cooler months.

A well-designed heating system can make these spaces more comfortable and potentially extend their usable season.

Residential applications can include:

• Covered patios

• Outdoor dining areas

• Large decks

• Backyard entertaining spaces

• Partially enclosed patios

• Outdoor kitchens

• Poolside gathering areas

• Large residential terraces

The heater should be selected and installed based on the specific dimensions, structure, enclosure, and requirements of the space.

Commercial & Hospitality Applications

The PH Series is also designed for commercial and hospitality environments.

Restaurants, bars, resorts, golf clubs, hotels, event venues, and other businesses often rely on outdoor spaces as an important part of their customer experience.

A patio can provide additional seating and an outdoor environment that customers want to enjoy, but colder weather can limit how frequently the space is used.

A permanent infrared heating system can help make the patio more comfortable during cooler conditions.

The PH Series is currently marketed for applications including restaurants, resorts, golf course patios, hospitality spaces, and other outdoor environments.

For these businesses, the heating system is about more than simply adding heat. It becomes part of the overall patio experience.

Rooftop Patios & Open-Air Spaces

Rooftop patios can present unique heating challenges.

They are often highly exposed to wind and changing weather conditions, and there may be limited options for enclosing the space.

Because infrared heating directly targets people and surfaces rather than relying entirely on heated air, it can be well suited to this type of environment.

The PH Series can be configured for open-air applications, with models such as the PH-75 HO 10-foot specifically designed for horizontal installation in open-air environments.

As with any outdoor installation, the specific site conditions need to be considered before selecting equipment.

Covered & Semi-Enclosed Patios

Not every patio is completely open.

Many residential and commercial patios have roofs, awnings, screens, partial walls, or other forms of protection from the elements.

These semi-enclosed environments can provide a different heating opportunity because some of the radiant energy and warmth may be retained more effectively than on a completely open patio.

The PH Series includes models suitable for open, semi-enclosed, and, depending on configuration and ventilation requirements, enclosed environments.

The important consideration is that an enclosed installation has different ventilation and installation requirements than an open-air patio. The appropriate heater model and installation configuration should always be confirmed before installation.

Designed for Cooler Conditions

Calcana's patio heaters are certified for use in temperatures as low as 40°F (-15°C).

This makes the PH Series relevant for locations where outdoor temperatures can drop significantly during the shoulder seasons.

For Canadian homeowners and businesses, this can be particularly useful during spring and fall, when outdoor temperatures may be too cool for comfortable patio use without supplemental heating.

Of course, outdoor comfort depends on more than the thermometer. Wind, clothing, activity level, patio construction, humidity, furniture placement, and the number and position of heaters can all influence how comfortable a space feels.

Infrared Heating & Wind

Wind is one of the biggest challenges for outdoor heating.

A forced-air heating system depends on moving warm air, making it difficult to contain heat in an open environment. Infrared heating works differently because the radiant energy travels directly to surfaces and people within the heating area.

This does not mean infrared heat is completely unaffected by weather. Strong wind and extreme temperatures still affect outdoor comfort.

However, the basic heating principle makes infrared a strong option for patios where heated air would otherwise disperse quickly.

The PH Series is designed for outdoor environments and is marketed by Calcana for use in open and breezy settings.

No Need for a Fan to Deliver Radiant Heat

Another characteristic of infrared heating is that it does not need a blower to distribute the radiant energy.

That means there is no need to create the same type of forced airflow associated with a conventional forced-air heater.

For a patio, this can contribute to a quieter and more comfortable environment.

Guests can sit beneath or near the heater without having a fan blowing directly across the space.

This can be especially desirable for restaurants and hospitality environments where maintaining a comfortable atmosphere is just as important as providing heat.

Planning the Right Number of Heaters

Selecting a patio heating system isn't simply about choosing one heater and placing it wherever there is room.

Larger patios may benefit from multiple heating zones.

Multiple heaters can be positioned to provide overlapping areas of radiant coverage, allowing a larger patio to be heated more effectively.

The number of heaters required depends on factors such as patio size, heater model, mounting height, layout, enclosure, climate, and desired comfort level.

A restaurant with a long rectangular patio may use a different configuration than a residential deck with a compact seating area.

This is why proper sizing and layout planning are important parts of the process.

Installation & Safety Considerations

The PH Series is designed for permanent installation, and the installation should be completed according to the specific model's requirements.

Important considerations include mounting height, clearance from combustible materials, structural support, gas supply, ventilation where applicable, electrical connections and controls, and the appropriate mounting hardware.

Different models and configurations can have different installation requirements.

For that reason, the product manual and technical documentation should always be reviewed before installation. Calcana provides PH Series specifications, manuals, model selection information, mounting options, dimensions, and installation details through its resource library.

Professional installation should be used where required by local codes or regulations.

Maintaining a PH Series Patio Heater

One of the benefits of a permanently installed heating system is having a dedicated piece of equipment designed for the application.

However, outdoor heating equipment still requires appropriate care and inspection.

The heater should be kept reasonably clean, and the installation should be periodically checked for signs of damage, corrosion, obstruction, or other issues.

The exact maintenance requirements depend on the model and installation environment.

A heater located in a relatively protected residential patio may experience different conditions from one installed on a busy restaurant patio or near saltwater.

Following the manufacturer's maintenance recommendations can help keep the heater operating as intended and allow potential issues to be identified before they become larger problems.

Choosing the Right PH Series Heater

With several configurations available, choosing a PH Series heater should begin with the space rather than the model number.

Consider the size of the patio, the layout of seating areas, ceiling or mounting height, whether the space is open or enclosed, the local climate, and how frequently the patio will be used.

Then consider the heater's length and output.

A shorter heater may make sense for a smaller area, while longer configurations can provide a more extended heating zone. High-output models may be appropriate for larger or more demanding outdoor environments.

Material is another consideration. Standard stainless steel can be appropriate for many installations, while marine-grade 316 stainless steel may be worth considering in coastal or high-humidity environments.

Finally, determine how the heater will be mounted.

Wall-mounted and overhead configurations can provide different approaches depending on the architecture and layout of the patio.

The PH Series as a Long-Term Patio Heating Solution

A patio heater should not simply provide heat. It should work with the space.

The PH Series is designed around that idea.

Its infrared heating technology provides targeted radiant warmth. Its range of configurations allows different patio sizes and layouts to be addressed. Its stainless steel construction provides durability for outdoor environments, while marine-grade options are available for more demanding conditions.

The heaters can be mounted overhead or on walls depending on the installation requirements, keeping valuable floor space available for guests, furniture, vehicles, walkways, or other uses.

Variable heat control provides the ability to adjust output as conditions change.

Together, these characteristics make the PH Series a flexible option for residential and commercial outdoor heating.

Making More Use of Your Outdoor Space

A patio can be a significant investment.

For a homeowner, it may be an extension of the living space. For a restaurant or hospitality business, it can be an important part of the guest experience.

But an outdoor space only provides value when people are comfortable using it.

Cold temperatures can quickly shorten the patio season, particularly in climates where spring and fall temperatures drop significantly.

Adding an appropriate heating system can help make the space more comfortable during these cooler periods.

The goal isn't necessarily to make an outdoor patio feel exactly like an indoor room. Instead, infrared heating can provide targeted warmth where people are gathered, allowing them to enjoy the outdoor environment while staying more comfortable.

Why Consider a Calcana PH Series Infrared Patio Heater?

The PH Series brings together several characteristics that are important for outdoor heating: targeted infrared warmth, adjustable output, flexible mounting, durable construction, and configurations designed for both residential and commercial applications.

With models available in different lengths and output levels, the system can be planned around the requirements of the specific patio rather than forcing every installation into the same configuration.

For homeowners, that can mean a more comfortable outdoor living space.

For restaurants, resorts, golf clubs, and hospitality venues, it can mean a heating system designed around the way guests actually use the patio.

And for both, the permanent installation can provide a cleaner and more integrated alternative to equipment that needs to be moved around the patio.

Final Thoughts on the PH Series

The best patio heating system is one that matches the space, the environment, and the way the space is used.

Calcana's PH Series infrared patio heaters are designed to provide targeted radiant warmth in outdoor environments where conventional heating methods can be difficult to use effectively.

With outputs reaching up to 75,000 BTUs, multiple heater lengths, standard and high-output configurations, stainless steel and marine-grade options, variable heat control, and flexible wall and overhead mounting possibilities, the PH Series offers a range of solutions for residential and commercial patio applications.

The most important step is proper planning. Patio dimensions, layout, mounting height, enclosure, weather exposure, fuel availability, and required clearances should all be considered before selecting a heater.

When properly sized and installed, a PH Series infrared patio heater can provide targeted warmth while allowing you to make better use of your outdoor space during cooler weather.

Whether you're creating a more comfortable backyard patio, extending the usability of a restaurant's outdoor dining area, improving a resort terrace, or heating a large commercial outdoor space, the PH Series provides a purpose-built infrared heating solution designed for the outdoors.