Harvest Thermal

Save money, make garage space, greatly lower my carbon footprint - Harvest provided wins across the board! I wanted to decarbonize my house, and learned that moving to electrical heating and water heating had a bigger impact than switching to an Electrical Car. I love Harvest's idea of using something that you already have (Water Heater) as a thermal battery. It's cheaper and more efficient than buying home electrical batteries for the same purpose. The system works great - my home stays comfortable, there's plenty of hot water, and I've cut my carbon footprint by roughly half. I was able to move the blower up into my garage ceiling saving about 9 sq. ft. of valuable space in my garage (just the water tank remains on the ground). It's also a good financial investment - saving me money in the long run.

Our Harvest Thermal system has just been a better way for our home to be heated and receive hot water. We’ve had our system since 2021, through a pilot program. Winters where we are in the Bay Area rarely fall below mid-30s, but nonetheless, since switching from our gas furnace, we’ve felt more comfortable during our colder seasons. No more dips in home temperature while waiting for the furnace to kick in. Just a steady comfortable temperature 24/7. Since warm air gets pushed out our vents so quietly, I’ve sometimes forgotten that our home is being heated at all. Hot water has always been readily available. Added to our small 4.0 kW rooftop solar and the time of use electricity plan for our ~1100-ish sq ft home, our electricity bill averaged just around $60-$70 this past winter. This includes charging for 1 electric vehicle. $5 of our utility bills is for gas. Eventually, we plan to replace our gas stove with induction stove. Installation of our system home took 4 days, which also included running new pipes and air ducts. Main components of our systems are: The Pod (Harvest Thermal’s technology), heat pump (mounted on our exterior wall), thermal battery (replaced our gas water heater), and air handler (which replaced our gas furnace in our attic). We didn’t opt to include cooling to our Harvest system, but understand it’s possible to add this in the future. Hopefully, those of you who read this will get a chance to work with this company as well. You’ll see the company’s founders Jane and Pierre, and the team behind Harvest Thermal are quite passionate about a sustainable future and dedicated to their mission of energy efficiency.

I've had a Harvest system for almost 2 years now. It's kept the home comfortable, my electricity bill is $0 for our fully electrified house, because we have 8 kW of solar on our roof. Old gas furnace used to wake me up at night, while the Harvest system is quiet and runs mostly when electricity is cheap. Plus, by placing the new air handler in the attic, I was able to convert the old furnace cabinet into a large walk-in storage closet.

We installed Harvest on our home, and we have found working with Harvest staff to be so easy and informative, they are so knowledgeable. Our bills are lower, our footprint is lower, and it integrates into existing appliances. We had an old gas furnace and gas water heater way beyond end of life - switching to a heat pump water heater & heating system through Harvest was our final step in whole home electrification.

We installed Harvest in 2024 for our house in Redwood City, CA. Two years have passed and we couldn’t be happier. First, the system has fully delivered on its promised energy savings. Second, it’s been completely reliable and we haven’t had any maintenance or repair issues. Third, the company was very easy to work with during design and installation. Yes, it was a little more expensive to install than other options, but the rebates and tax credits were substantially better, too. And it just might be the smartest and most efficient home heating solution around. Our gas bill is now close to zero. Well worth it! Let me comment on two things that surprised me, for the better. The Sanco2 heat pump is advertised to be “whisper quiet.” I was skeptical of this claim, but it really is. We installed it below a deck behind the house and I literally can’t hear it unless I walk right up to it. Impressive! The quality of the heat is also very different from a gas forced-air furnace. Gas furnaces are usually kind of loud … You can always hear them when they kick on and blow hot air really hard. Not so for Harvest … It’s so quiet inside the house that I almost can’t tell if the system is running or not. Gas furnaces also tend to dry out the air, and the temperature in the house tends to cycle between hot and cold as the heat from the furnace dissipates. Not so for Harvest. Because it runs “low and slow” and because the air is heated by circulating hot water, the temperature in the house remains nearly constant, with no big swings between hot and cold. Harvest doesn’t dry out the air, either. Humidity remains neutral, which is a lot more comfortable, and also tends to hold onto the heat. So, in our experience, the house “feels” warmer at the same thermostat setting, because of the neutral humidity and better retention of heat. I wasn’t counting on either of these things. We were just looking for an energy-efficient way to replace our old gas furnace and water heater. But with Harvest, the house has never been more comfortable. It is noticeably, qualitatively better, in addition to being extraordinarily efficient. Fantastic company and technology!