Are heat pumps good investment on a new build?
Carolyn Kerley
2 years ago
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wdccruise
2 years agoCarolyn Kerley
2 years agolast modified: 2 years agoRelated Discussions
Looking for a really good 1.5 ton heat pump
Comments (5)I think as long as you steer clear of builders grade systems and have the ductwork sized correctly and sealed you will have a very good life expectancy. rheem,ruud,american std,trane,carrier,bryant all have good products overall but some spec out better than others and have better price points. There are some options that are a must for comfort and performance/efficiency like : Demand defrost, txv, variable speed blower and good thermostat like the honeywell visionpro series preferably the IAQ or some manufacturers have excellent thermostats. Tigerdunes has a very good list of specs to aim for which gives a very good bang for the buck on efficiency, comfort, and impact on the wallet now and every month you live in the home....See MoreHeat pump good for Indiana winters
Comments (2)Just put a bit more money into your walls. Finding NG may not be easy and you can overcome NGs advantage for a relatively small cost in better walls/insulation etc. There was a guy in Iowa (much colder) that was spending $20 a month on electric resistance heat. Why have anything else when you are insulated that well. Obviously that is an extreme but the point remains that you can overcome the higher cost of your fuel by building better. Also the heatpumps are far better especially Greenspeed. It isn't that hard to build well enough to cut your heating load in 1/2 or even less. You also have the geothermal option but often times better walls/insulation is a cheaper route. By better walls - 2x6 with fiberglass is basic code minimum. And may not even cover it in 2012. What you really want is foam exterior sheathing - and probably 2 inches of it in your climate with no NG. Do your research here - if you don't have NG, it can really pay to build a good structure....See MoreDual Fuel Heat Pump w/ gas furnace or just heat pump?
Comments (17)I'm leaning towards just heat pump with heat strips. That should be fine for your area. If you plan on keeping it that warm in the house as you say in your OP, I would get the Bosch Inverter heat pump as it produces heat clear down to about 5-6 degrees ambient and very efficient at what it does. Then use the strip heat as you need it. I don't know that you'll find a contractor though for this for a new construction job as Bosch just recently came to the Houston market a few months ago. The distributor network for Bosch is in it's infancy... so there are pros and cons for choosing this brand. For what it does / how it does it --- it's a game changer for my market. (Katy, Texas area) As a comparison --- an average run of the mill single speed heat pump will probably struggle once temps drop into the 20's for any significant amount of time. They are efficient when compared to strip heat (utility bill cost wise) but there are higher limitations with those. I've gotten email notifications from my electric provider that they are estimating my next electric bill at less than $50 for November. This may wind up being my lowest electric bill ever for my power rate of 12 cents per KWH. With that said, I keep it quite chilly during the winter and my house is all electric (no gas at all). I shut it off at night and really just use it to take the chill out of the house in the morning. If it gets really cold here, I will probably just heat the main part of the house over night --- as I have it attached to a 4 zone duct system. (This is to explain the how and why my electric bill is so low -- design of the HVAC system is a big part of it.)...See MoreNew Gas Furnace with Heat Pump setup, Em heat?
Comments (20)Thanks, Mike & Tigerdunes: I've been a builder for over 30 years so I tend to pay very close attention to the little things happening in my home as I'm the guy who probably installed it and has to fix it if it breaks. I had a Honeywell Wifi thermostat that was terribly unreliable in terms of its Wifi connectivity and lack of today's available features. I did not want one of the new Internet based DIY thermostats like Ecobee or Nest because they get their temp from the Internet, a temp that is always several degrees differant from my home. I wanted a hardwired outdoor sensor. So, I installed one and a Venstar T7850 Wifi thermostat that appears to be rock solid, versatile, easy to program and the connectivity is flawless. My brother is a commercial builder and uses them exclusively in his buildings with great success. It provided all sorts of usage data on a minute by minute basis if desired. It even has an installation test mode that checks your wiring and turns different components on and off to confirm your setup, which I think is brilliant. That said, I feel good about my wiring and setup. I can run 'Emergency Heat' with my inverter/generator during a power-loss, and everything else seems to work fine. My changeover point is set to 33 degrees which is determined by the hardwired 10 ohm outdoor sensor as it should be. My only concern is the one I mentioned in my initial post: I call for 5 degrees of heat, the heat pump comes on for a couple of minutes, then the furnace lights up due to the 5 degree call, and my heat pump does not shut down (or it doesn't seem to). It might be that it would shut down in a matter of minutes or might just be winding down in some cool-off mode. As I said, I am afraid to let it run just to see what happens because something bad might happen... like creating an over pressure situation and blowing a refrigerant line. I wish I could find out if this is not out of the ordinary for a heat pump but thus far nobody can tell me definitively as there are different variables, which is understandable. It's just hard to get anyone out here during this virus and the drive-time alone adds 100's of dollars before anything is even gets looked at. Sorry this got so long winded....See Morefsq4cw
2 years agolast modified: 2 years agoStax
2 years agolast modified: 2 years agosktn77a
2 years agolast modified: 2 years agoCarolyn Kerley
2 years agoCarolyn Kerley
2 years agolast modified: 2 years agoShadyWillowFarm
2 years agoCarolyn Kerley
2 years agoCarolyn Kerley
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