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- Space Heating
Space Heating
HTP's space heating boilers provide ultimate comfort and the best overall efficiency ratings while keeping maintenance and operating costs to a minimum. With a HTP high efficiency boiler you can achieve the heat your family or business needs while also saving money and energy.
Residential
- • Elite Ultra Wall and Floor New
- • Elite Fire Tube Ultra New
- • Pioneer
Commercial
- • Elite Ultra Duo New
- • Elite XL
Accessories
- •ELU/EFTU 0-10V Clip-In Board New
- • ELU/EFTU Cascade Kit New
- • ELU/EFTU Common Vent Kit New
- • Elite XL Stack Rack New
- • Elite XL System Flow Kit New
- • HTP Link New
- • ModBus BACnet
- • The Universal Stand
Not sure which type of space heater is right for you? Learn more by viewing our space heating selection guide
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- Water Heating
Water Heating
Residential
Tank TypeGas SeriesElectric SeriesCommercial
Tank TypeGas SeriesElectric SeriesHTP has several water heating options for your needs: tank type water heaters, tankless water heaters, our Crossover series water heaters, or supply boilers. HTP also has models for both your residential or commercial needs.
Not sure which type of water heater is right for you? Learn more by viewing our water heating selection guide
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- Indirect Water Heating
Indirect Water Heating
HTP's Indirect Water Heaters can be a part of your combination heating system whether you need indirect tanks or storage tanks for your residential or commercial needs.
Not sure which type of indirect water heating option is right for you? Learn more by viewing our indirect water heating selection guide.
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- Combination Appliances
Combination Appliances
Combination appliances save homeowners money on operating expenses, reduces overall installation costs, and takes up less space than traditional space heating and hot water appliances.
Floor and Wall Combis
- • Elite Ultra Wall and Floor New
- • Elite Fire Tube Ultra New
Phoenix Series
The Mod Con Double Stack - Commercial Gas Boiler
The Mod Con Double Stack is a modulating condensing commercial boiler that operates at up to a 94% thermal efficiency rating. Stack our highly efficient Mod Cons to achieve the ultimate heating experience. These Mod Con Double Stack units are equipped with a high grade modulating gas burner that operates at a 10 to 1 turndown ratio to meet your heating needs! Its built in redundancy allows for no downtime so you are always satisfied.
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A Low Mass Boiler with a High Efficiency
The Mod Con Double Stack is up to 94% thermal efficient with a 10 to 1 turndown. Older gas furnaces may only be using as little as 60% of energy consumed. Heating is the largest energy expense in most homes accounting for 35-50% of annual energy bills in colder parts of the world. With the Mod Con DS 94% of the dollar spent on heating is properly used to heat the home/building. That is real savings!
Its modulating burner combustion system and two independent boilers work together as one unit, saving fuel and providing comfort levels efficiently and evenly. The BTU modulation ranges from 100,000 to 1,700,005!
The Perfect Fit
The Mod Con Double Stack comes in two model sizes and has built in redundancy with a heating capacity of up to 1,700,005.
The Mod Con Double Stack Volume Water Heater is also available.
Model Btuh/Input Range Thermal Efficiency Mod Con 1000 100,000-1,000,000 94.1% Mod Con 1700 170,000-1,700,005 94.1%
Becoming Green
Not only does the Mod Con DS save energy and money, it is also eco-friendly. The Mod Con DS Boiler has ultra-low NOx emissions providing additional environmental savings due to its combustion control system, which minimizes levels of nitrogen oxide. If NOx levels are not reduced, oxidants can build up in the atmosphere and have harmful effects on human health. The Mod Con is an eco-friendly choice, protecting the environment while saving your energy and money.
An Easy Installation
The Mod Con DS is equipped with concentric venting and requires only one exhaust connection through the wall or roof for exhaust vent piping. It has complete flexibility with the ability to vent up to 150 ft.
The lower exhaust temperatures due to high efficiencies allows for the use of PVC or other plastic venting materials which saves on installation cost and time.
The Mod Con DS has indirect water heater integration. With the addition of a storage tank, the Mod Con Double Stack boiler can be converted into a hot water heater to provide ample heating and hot water to save you space and money!
High Heating with High Quality
The Mod Con Double Stack is manufactured with 316L stainless steel to provide excellent heat transfer properties and increased corrosion resistance. The heat exchanger is made without the use of gaskets and with superior welding technology. It is ASME approved and is 150 PSI relief rated.
