More Savings. More Comfort. Less Energy.
Experience next-generation heating with the Anesi Gas Heat Pump, delivering up to 140% AFUE efficiency for unbeatable comfort and energy savings even in Ontario’s coldest winters.
GET A QUOTEWhat is a Natural Gas Heat Pump?
A natural gas heat pump also known as a gas-fired absorption heat pump uses a small gas burner and an innovative absorption cycle to move heat instead of simply generating it. This allows it to deliver more heat energy than the fuel it consumes, achieving up to ~140% AFUE efficiency.
The result? Reliable warmth, lower gas use, and fewer emissions compared to a traditional furnace.
How Does a Natural Gas Heat Pump Work?
Instead of burning gas just to create heat, the Anesi Gas Heat Pump uses that energy to power an absorption cycle that extracts heat from the surrounding air.
It then amplifies and transfers that heat into your home, delivering exceptional efficiency and year-round comfort all powered by natural gas.
Why Homeowners Choose It
Meet the future of heating. The Anesi Gas Heat Pump keeps your home cozy, your bills lower, and your carbon footprint smaller all with reliable natural gas performance.
Up to ~140% AFUE for serious fuel savings compared to standard gas furnaces.
Uses a natural refrigerant (R717) with zero GWP and no PFAS in the sealed system.
Variable-speed fan and 4:1 burner modulation smooth out temperatures and reduce cycling.
Uses standard 120/240 volt power and integrates with a typical ducted home.
Get Up to $10,000 rebate to install a residential natural gas heat pump
*To qualify, you must be an Enbridge Gas residential customer
in Bradford, Georgina, Newmarket, New Tecumseth and Orangeville.
Enbridge Gas Residential Natural Gas Heat Pump Program.
Eligible homeowners can receive rebates through the Enbridge Gas Residential Natural Gas Heat Pump Program.
Go Lime is proud to be a participating contractor recognized by Enbridge for installation of approved gas heat pump systems.
Why Choose Anesi Gas Heat Pump Over a Conventional Furnace?
Understanding the differences between a standard gas furnace and a natural gas heat pump helps you choose the best option for your home’s comfort and energy use.
Up to ~140% AFUE
Up to ~95–98% AFUE
Optimized; maintains comfort in deep cold
Good
Reduced gas use for same heat delivered
Baseline
Natural refrigerant (zero GWP) in sealed loop
N/A
Can integrate space + water heating
Separate appliance
Soft Flex, Big Proof.
Join Thousands of Happy Ontario Homeowners
4.8 ★ out of 5 based on 7,000+ reviews
Adam Green
I just replaced my hot water heater. I stumbled across this company online and read the good reviews. Price was much better than other companies, so I was skeptical. I called Saturday afternoon, confirmed online Saturday night, and the work was completed Sunday afternoon. I have been so impressed with the service from my phone conversation with Juan to the installation by Alireza. Now I can only hope that the product is as good as the price, technicians, and customer service.
HockeyfanCanada
Finally, purchased today, scheduled installation over the weekend. For comparison I have checked with Home Depot and they quoted $2200 +tax. Rheeem 50 Gallon power vent $1489 is the item they will install, so roughly $700 installation fees. They won’t return the old one. Not sure about Costco pricing, they have $300 Gift Card. I don’t think anyone else would sell less than Go Lime. Thanks.
evereddie
I just had Go Lime install my new hot water tank, and everything went great. No issues at all, and you can't beat the price. Some people complained about the fan on the hot water tank being super loud, but I don’t have that issue at all. In fact, it’s quieter than my old tank
HomeOwner
This is the third time I met Ashraf to do the services at my home, everytime the next experience waa wonderful than the previous one, he is extremely knowledgeable and imparts wonderful professionalism. He not only fixed the issues but gave me the tips & advices how to maintain and keep running the systems. He is very courteous, friendly and helpful, I will definitely will recommend him100% for the jobs and want to see him if I have the service calls.
In most homes with central ducting, yes—our team confirms sizing and supply temperatures during your assessment.
Yes, for controls and fans (typical 120V/15A circuit). Gas is the primary energy source.
Maintenance is similar to a high-efficiency furnace. Go Lime offers worry-free plans to keep your system running like new.
Rebates are program-limited and eligibility-based; we’ll help you navigate the steps and timelines.
Need a hand? We’re here to help.
Have questions or ready for a quote? Fill out the form below and our comfort specialists will reach out to guide you every step of the way