It is 73 degrees warmer...
7 years ago
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heat transfer with 70 degree water.
Comments (5)Thanks for you reply fruitnut, I am heating some beds with plastic and they have row cover over hoops too. You are right that is super effective. I will have to shade the set-up on really hot days. The solar pool heaters are a good idea. My problem isn't very big once the plastic mulch is installed so I was trying to keep the solution small. WIth a bigger garden in a large high tunnel, that's an awesome idea. I have also thought about putting a high tunnel over the tanks and letting them control the climate in there , including circulating the water. The water temps would go up if the tanks were in a tunnel...and they might pull excess heat during the day. I am at 2000 feet in Southern California. We have a ton of Sun here, but it gets fairly cold at night and even the soil under the plastic mulch has gotten under 50F. It is nothing to have 85F during the day and then that day or a day or two later have a frost. That pattern goes on for 4 months(averages out to 60-44) and nights still take a long time to get above 50 once spring comes. What I would do is put the recirc pump on a soil thermostat for around 60-65F...I tend think that there is far in excess of enough water for this a few hours during the occasional cold night.... If plastic works though, that is way preferable. I put some water bottles with black water in ...so far tomatoes are doing well since valentines day, but the low has only been 38f....See MoreIs it normaal to have the discharged air temperature 105 degree
Comments (2)It depends on the outside temperature as to what the heat pump will put out in the way of heat. A temperature of 110 degrees at the plenum is not uncommon with warmer outside air, say above 55 degrees. It is also normal to notice a smell (mostly from dust) when you turn the heat on for the first 1 or 2 times for the season. If everything is working as it should, I doubt your aux. heat kicked in and the 105 is the heat pump itself. So far, without actually testing the unit and taking into consideration the temperatures throughout the country lately (not knowing where you are located) I think your unit is just fine. Heat pumps are designed according to the cooling needs of the building. If the unit was cooling properly, the heat pump mode will heat properly. Aux. heat makes up the difference needed to fully heat....See MoreUpper story 10 degrees warmer than basement
Comments (8)Yup, it sounded just like a N. Va 1946 house from your initial description. We're in N. Va, also (S. Arlington). Home built in 1947. You might invest in an energy audit - very helpful info. But knowing these homes, I would do the following: insulate the walls (you probably have rock lathe). I've opened up a couple of our walls to rewire and found insulation voids because it deteriorated and settled to the bottom of the wall cavities. Proper, complete insulation will make a huge difference.). (You can blow cellulose into the walls, for example). Make sure the cavities behind your window casings are insulated (easier to tell in extreme temps). I found several of ours to be empty. Even the window replacement guys like to "forget' this little item during their installs. Air-seal, then insulate your rim joist areas in the basement. (Presuming you have a basement - probably so.) Use window treatments to block the summer sun. Attic: maybe you don't have sufficient ventilation up there. Might be time to enlarge the gable vents and also get a ridge vent installed if you don't have one. This in combo with good insulation in your attic floor, of course. Btw, insulate your attic access door - most aren't. Anyhow, that's a start. I wouldn't be worried about the "return" in the basement, but close any basement ceiling registers in the AC months, if you have them. Our basements cool just fine with only the returns. Let the cool air get pushed upstairs. One more thing...climb into your attic and make sure all your HVAC ducts and joints are properly insulated throughout. They sometimes leave things incomplete when out of sight, esp. in the hard-to-reach places. If you have recessed lighting upstairs, box over them in the attic (safely), then insulate. Same for your bath fans....See MoreFeels better tonight - 73 degrees
Comments (2)Same here and no more 90's in the 7 day forecast. I sure hope that hot summer is past us. This was the hottest summer since 2012. That was a BAD summer for us. Phew....See More
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