Mini split

[The Real BigGuy]

If you are in a cold climate and anticipating using the mini-split for heat, look for hyper heat models. That said, I don’t know of any reputable cold climate installer that recommends mini-splits as a sole heat source. Remember, if you pull your boiler you lose your basement heat source. Will your pipes survive the cold?


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[FlyingScot]

Originally Posted by The Real BigGuy

If you are in a cold climate and anticipating using the mini-split for heat, look for hyper heat models. That said, I don’t know of any reputable cold climate installer that recommends mini-splits as a sole heat source. Remember, if you pull your boiler you lose your basement heat source. Will your pipes survive the cold?


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We had mini splits as our only heat in Mass for 5 years, and they were great. That's not quite as tough as the lake, though I'm pretty sure they were OK at -5 or -10. But I agree you'd want a professional recommendation and good insulation

[ishoot308]

Originally Posted by FlyingScot

We had mini splits as our only heat in Mass for 5 years, and they were great. That's not quite as tough as the lake, though I'm pretty sure they were OK at -5 or -10. But I agree you'd want a professional recommendation and good insulation

I would have no problem using Mitsubishi Hyper Heats units as my only source of heat in the Lakes Region of NH. As a matter of fact I do in an efficiency unit I built a few years ago above a garage. Absolutely zero issues in the coldest of weather! They are 100% efficient to 5 below zero and continue to throw heat (at a lower efficiency) to 22 below zero. Good insulation is the key!

Dan

[Biggd]

I had a 48000 btu Hyper unit installed in my home in Ma this past fall, mainly for the AC. I tried using it for a few months as heat only this past winter. Although the heat worked great even in the coldest weather, I didn't see any savings over using my oil boiler system.
In January electricity went up and oil went down so I eventually switched back to burning oil. I'm glad I kept my oil system, so I have the option to use either one depending on prices.

[4 for Boating]

We are in the process of moving away from a Monitor K1 heater to a mini-split to both save money and provide AC in the summer if needed. (Actually it's efficient - albeit fossil fuel - but at one point a year of so ago the K1 was over $7 a gallon!!!!) Anyway, the unit/model we picked is rated for heating down to -13F which was one of the better I could find for such a climate.

[John Mercier]

Oil and gas boilers are efficient in the winter because they are generally being used in a combination format for heat and hot water, so less of a standby loss - as that heat is shunted into the basement/living space.

[SAB1]

I would not rely on the hyper heat as a lone heat source in this region base on my installlers recommendations.

[Biggd]

Originally Posted by SAB1

I would not rely on the hyper heat as a lone heat source in this region base on my installlers recommendations.

If you're building a new house and it's super insulated, I'm sure you would be fine. They do throw heat even below 0 but it's not exactly hot air.