Reply to (cold weather) Heat pump installers

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Reply to "(cold weather) Heat pump installers"

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[quote=Anonymous][quote=Anonymous]My experience in Arlington with a major brand top-of-the-line high-efficiency heat pump which is about 8 years old is that it works very well UNTIL outside temps are roughly 25 F or below.  Around that outside temperature it starts to use very expensive “electric resistance” heat (which is its backup heating element).

So I do not blame the installer for being reluctant.  Many people who move to a heat pump solution become angry/upset with the company which installed it after their winter heating bill soars on very cold days.  HVAC Companies try to protect themselves by recommending solutions without that hidden cost, and I do not blame them one bit.  My neighbor had exactly that poor behavior the first winter after he replaced gas furnace with a heat pump.  He had been cautioned against it.[/quote]

This is exactly why you want a [b]cold weather [/b] heat pump, and why you want to get someone who knows what he's doing to install it.

The cold weather models lose much less capacity at colder temperatures, they typically have about 95% of their 50-degree capacity at 0F.  A regular heat pump might keep half of its capacity at that temperature. The technology for cold weather is called "vapor injection," different manufacturers have different trade names for it. I know Mitsubishi's version goes under the "Hyper Heat" name and is well-regarded. [/quote]

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