Mitsubishi Hyper Heat

7owners with an opinion

83%of verdicts positive

2/1positive/negative since 2024

2 yrslongest happy owner

0happy after 3+ years

Praised for performance and reliability; criticized for value and noise.

What people wrote

Doesn’t like itOwned 7 years

I live in Colorado, so I'm in one of the colder climates with a decent amount of time spent below freezing each year. I've had a Mitsubishi Hyper Heat mini-split system with 2 outdoor units and 3 indoor heads for ~7 years now. I'm trying to move houses to get away from it. It's crazy noisy during the winter, the temperature control is whacky, and it's 2-3X the price to run than a gas furnace with electric vs gas rates around here. Not only that, with new 95% or 96% efficient furnaces, I'm not sure heat pumps are any greener. Don't get me started on the install costs and the fact that your average mini split unit is barely sized to heat a room, let alone a full house. For me, it was better than the electric baseboards I replaced, but I'd still prefer a standard furnace. I think we need to be very careful forcing everyone to convert to these until the tech is more mature, especially in the Northern states and places like Colorado. I looked on forums recently to see if the tech has evolved in the last 10 years, but many of the recent buyers still had the exact complaints I listed here.

Doesn’t like itOwned 5 years

Ugh, I think this is a terrible idea for heating. I've installed 2 Mitsubishi hyper heat pumps in the past 5 years with 3 indoor heads totaling ~42,000 BTUs of heat capacity. I don't think people understand how much more expensive heat pumps are than a traditional natural gas furnace. I paid $25,000, and that was 5 years ago. This is for a small house of 1500 square feet. If you had a larger 3 or 4,000 square foot house, you can double or triple that price. In contrast, I know you can get a 250,000 BTU gas boiler for ~$20,000 with install. Plus, electricity is still way more expensive than gas, even with the price shocks over the past year and even with the high efficiency of modern heat pumps. And it's not even green, given that you lose ~50% in transmission, and usually it's coming from a coal or natural gas plant. If you had solar to offset some of it, that would be great, but usually there isn't enough sun in the winter to account for all of your heating needs, at least without a gigantic array. I think this is pretty impractical and misguided. I've tried to be green, but next time I buy a house, I'm going to try to go back to a gas furnace.

Likes itOwned 2 years

I second the other reply. I live in Chicago and installed an air source heat pump. (Mitsubishi hyper heat). Its served me well for two winters so far. My next step is probably to replace all my windows and doors to get better efficiency.

Likes it

So, i have a house in Haliburton Ontario. Historically we drop a cool $3k a year on propane. Last year we installed a Mitsubishi hyper heat ductless system. We used zero gas this year. Read it again, zero. It’s lakefront, very remote, and the largest electricity bill i got was around $450 for a month and then they dropped back to something more like $250. The savings are huge, I’m no longer stressed about running out of gas…and the heat pump performed well beyond its advertised specifications. We had a few -25C days and it was humming hard, but the house stayed a comfortable 20C inside. The house is around 3000sqft and we didn’t even get the largest unit, i can’t stress enough that they actually operate better than advertised. We would run a fire from time to time but we did that with propane too, it’s mostly ornamental. https://photos.app.goo.gl/FCwLJQAtoG67g9y86 https://photos.app.goo.gl/TwiMaSAj9hGxYqby6 https://photos.app.goo.gl/gYVYvVEB3whLCv1dA https://photos.app.goo.gl/49RcBdBuUZ2jVN3J7

Likes it

I recently had a Mitsubishi hyper heat installed to replace my natural gas furnace. The air handler is connected to the ducts so it was an easy transition. I live in Chicago so I also had 10kW resistive heat strips installed as a backup. This winter they never needed to come on, and I was able to keep the house at 70 degrees F even when we hit around 0 degrees F outside. I haven't crunched all the numbers but so far my electricity bill has gone up by about as much as my gas bill has gone down, so there really isn't much savings there which is too bad. I mainly did this though for the environmental benefits, as I want to slowly phase out all natural gas in my home. Next step will be to replace my gas range with an induction cooker, and the last will be a heat pump water heater.

Neutral

Above, you claimed that they don't work when the temps hit 0C. Now you tell us a story about them not working at -14C. That's a fairly big difference. Our pumps (mitsubishi hyperheats) struggle a little at 5F (-15C) but they do not stop working, and that's in an old house with terrible insulation. > Finland loves their steam/hydronic heat, which I will guarantee isn't being run off of heat pumps. In my case, the steam is being generated by the 240V electric steam generator that takes power from my 7kW ground mount solar array.

Likes it

I think that's less and less of a problem. We just installed a Mitsubishi Hyper Heat, that's supposed to work down to -20⁰F without any auxillary heating. Many other units have auxillary resistive heating when the temperature are that low, which is obviously less efficient than the heat pump, but is still better than needing to maintain a fossil-fuel furnace.

Likes it

I put in a new Mitsubishi Hyper-Heat heat pump last summer. It got down to 17 Farenheit in Seattle this winter. There are no heat strips or supplementary heating arrangements. The heat pump performed well the entire winter. My energy bills are 1/2 of what I was paying with an electric furnace last year.

Likes it

Pure n=1 anecdata. Last winter I was on vacation and saw via Nest app that my boiler died. We have a heat pump that 99% of the time is used for AC, and sometimes for supplemental heat. We only have them in the main rooms, so things like bathrooms and such receive no benefit from them. The unit outside is a Mitsubishi Hyperheat. I logged in and turned the units on just to keep the house from freezing. BUT during that trip a giant blizzard struck the area. I forget the air temps and they definitely weren't double digit negative but it was quite cold with high winds and a lot of snow to boot. They held the house together well enough in our absence.

Neutral

This is a good point. And I'd imagine most people when talking anecdotally on their own experience are comparing based on cost. And of course costs will vary. For instance we have a heat pump that we mostly use for AC. Our primary heat is a gas boiler feeding steam radiators. We'll use the heat pump in the shoulder seasons when you just want to take the chill out of a specific room, but usually nothing else heat wise. Last winter our boiler died and we spent about a month without it. That provided me a good opportunity to do something closer to apples/apples. Despite having the cold weather rated heat pump (Mitsubishi HyperHeat2) the extra electricity consumed that month was about the same as our typical gas cost. A slight bit more actually. But I have no idea about energy usage in an objective sense. And if I really wanted to go down this rabbit hole, we're subscribed to an energy plan that's mostly based on renewables whereas obviously 0% of our gas is the same.