6 things you need to know about gas absorption heat pumps

Source: Fortis BC | · THE REMI NETWORK · | January 7, 2025

Similar to electric heat pumps, gas heat pumps capture heat from the outdoor ambient air and transfer it indoors for space and water heating. By transferring heat, a gas heat pump creates more than one unit of heat for every unit of energy it uses, giving gas heat pumps the ability to operate on average at more than 100 per cent efficiency.1

In 2022 we launched our commercial gas absorption heat pump rebate program—the first of its kind in Canada. Our rebate covers up to 75 per cent of the total project costs, up to $200,000, for installing eligible gas absorption heat pumps in commercial, multi-unit residential or institutional buildings.

Tried and tested technology

We’ve tested the performance of gas absorption heat pumps in commercial buildings across B.C. in a pilot program, and we’re currently testing this technology in residential homes. We surveyed past pilot participants and found out what these early adopters wish they knew sooner. Cameron Lee, a FortisBC conservation and energy management program specialist who’s focused on helping commercial and industrial customers save energy, explains some of the survey’s key findings and other learnings from the commercial gas absorption heat pump pilot.

1. Gas absorption heat pumps can maintain a comfortable space on the coldest days.
“The units are designed to operate efficiently in colder climates,” says Cameron. “They can continue to operate when temperatures drop below -40 °C, making them a great option on the coldest days, even for customers in the Southern Interior and Northern B.C.”

2. Gas absorption heat pumps can be used in a variety of applications and buildings.
Energy managers and consultants who were surveyed noted this technology is suitable for a wide range of commercial, multi-unit residential and institutional buildings, from office buildings, hotels and schools to hospitals, recreation centres, care homes and more. “The pilot demonstrated the versatility of these units, after being tested in a variety of settings,” Cameron said.

Gas absorption heat pumps can function as:
• a space heating and/or hot water system
• ventilation
• a supplementary system that can be added to improve the efficiency of existing systems