The states listed are: - California - Colorado - Maine - Maryland - Massachusetts - New Jersey - New York - Oregon - Rhode Island
So the usual blue-state suspects, minus Washington and a bunch of the New England states.
Nine US states are teaming up to accelerate the adoption of heat pumps
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Re: Nine US states are teaming up to accelerate the adoption of heat pumps
#82The states listed are: - California - Colorado - Maine - Maryland - Massachusetts - New Jersey - New York - Oregon - Rhode Island
representing ~1/3 of 2022 GDP
(via https://www.bea.gov/sites/default/files/2023-12/stgdppi3q23.... )
Re: Nine US states are teaming up to accelerate the adoption of heat pumps
#83Earlier quoted context omitted.
Yeah if my heat were 100% electric I’d have to install a wood heating-stove to feel like I wasn’t being irresponsible. Or maybe get a couple portable kerosene heaters.
I think a sensible option, if you live in a place where electrical grids goes out for a couple of days fairly routinely, would be a transfer switch and a generator. If sized well enough you could use it to run a resistance heater (the cheap portable type) to keep one or two rooms warm in an extreme scenario.
Pipes freeze and burst, whole house has to stay warm. It’s not just about comfort or safety.
Re: Nine US states are teaming up to accelerate the adoption of heat pumps
#84The states listed are: - California - Colorado - Maine - Maryland - Massachusetts - New Jersey - New York - Oregon - Rhode Island
Interestingly enough, That list of states besides Colorado and Maine all were the biggest losers of population in 2023, meaning people are leaving these states.
- California -0.9
- Maryland -0.5
- Massachusetts -0.6
- New Jersey -0.5
- New York -1.1
- Oregon -0.1
- Rhode Island -0.3Re: Nine US states are teaming up to accelerate the adoption of heat pumps
#85Earlier quoted context omitted.
Can you explain why this is a big issue?
I’ve had one for three years. While I generally love it, it cools too fast, which means it sucks at removing humidity, actually increases it a little. The installer over-provisioned.
I've heard this before -- that oversized cooling units (whether standalone AC or part of a heat pump) mean muggy interiors in the humid seasons. But...why? I'd think that a fixed amount of air compressed in the compressor means a fixed amount of condensation runoff from the unit, and it wouldn't matter much whether it's a big unit running occasionally or a small unit running frequently. Why is that wrong?
Re: Nine US states are teaming up to accelerate the adoption of heat pumps
#86I just replaced a furnace... everyone I called for a quote would not touch a heat pump with a 20foot pole, or they wanted prices that were 2X what a separate furnace and AC would cost to install. It was very strange. This is the second home where I had this experience.. basically, they really did not want to install it. I ended up going with gas as no local person would install/warranty a heat pump, or, it was priced so high it was a non-starter (e.g. a gas furnace is $4k, the AC is $4k, making it $8k, _but_ if you want a heat pump, well, that is going to be $15,999.85.)
This was recently, btw, as in last month. I am still kind of shaking my head.
Re: Nine US states are teaming up to accelerate the adoption of heat pumps
#87A big issue right now is the oversizing of heat pumps by HVAC contractors who are used to sizing gas furnaces using very simple btu/hr/sqft calculations. A contractor should do some kind of heating need analysis, at the least by studying old utility bills, and ideally by doing a Manual J heat loss calculation for the house. But almost none of them do that. There are some startups attempting to handle these design ste…
A possibly helpful thread related to the heat pump retrofit process and the need to assess context for each home: https://twitter.com/karakara98/status/1598718540365938688
The other thing I've kept thinking about is the replacement interval , material input (compressor, refrigerant, etc.) and ease of maintenance. They generally have a lifetime of 10 years IIRC.
Re: Nine US states are teaming up to accelerate the adoption of heat pumps
#88Earlier quoted context omitted.
I’ve had one for three years. While I generally love it, it cools too fast, which means it sucks at removing humidity, actually increases it a little. The installer over-provisioned.
I've heard this before -- that oversized cooling units (whether standalone AC or part of a heat pump) mean muggy interiors in the humid seasons. But...why? I'd think that a fixed amount of air compressed in the compressor means a fixed amount of condensation runoff from the unit, and it wouldn't matter much whether it's a big unit running occasionally or a small unit running frequently. Why is that wrong?
I don't think it's about duty cycle -- it's seriously about speed of temp change and I _think_ dew point.
But yes, I have a heat pump and in NYC Summer I cannot run it on anything but low otherwise it increases the humidity. It took me a few weeks of looking at the temp humidity graphs to understand that point.
Re: Nine US states are teaming up to accelerate the adoption of heat pumps
#89The states listed are: - California - Colorado - Maine - Maryland - Massachusetts - New Jersey - New York - Oregon - Rhode Island
Interestingly enough, That list of states besides Colorado and Maine all were the biggest losers of population in 2023, meaning people are leaving these states. - California -0.9 - Maryland -0.5 - Massachusetts -0.6 - New Jersey -0.5 - New York -1.1 - Oregon -0.1 - Rhode Island -0.3
60 million people live in California and NY.
9 million in NJ
4.2 million in Oregon
7 million in Massachusetts
6 million in Maryland
1 million in Rhode Island
Re: Nine US states are teaming up to accelerate the adoption of heat pumps
#90I just replaced a furnace... everyone I called for a quote would not touch a heat pump with a 20foot pole, or they wanted prices that were 2X what a separate furnace and AC would cost to install. It was very strange. This is the second home where I had this experience.. basically, they really did not want to install it. I ended up going with gas as no local person would install/warranty a heat pump, or, it was priced…
If you’re somewhat rural the contractors just don’t have the experience to do it so they try to quote you out of the decision. I had to shop around until I found a contractor that had done this before and I was able to get a whole home heat pump for about the same price as a regular furnace/AC system (because of the rebates).