Mechanicals- Page 3 of 171
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Minisplit on Ice
It’s been colder than usual and snowy here as it has been many other place (0 at night, 10 in the day, zone 4a). This picture is of a 24kbtu…
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Fresh Air, Dehumidification, and HVAC with Zone Controller
Background I'm in climate zone 4A. 1600 sq ft house, 1.5 stories, 2 ACH 50. R40 ceiling insulation, R26 walls, and R12.5 crawl space (conditioned). The HVAC is a split system. 2…
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Total energy use from manual J
I have a manual J report and its a bit over my head. I can see where it shows peak equipment loads to size a/c and furnace, but where can…
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Path for Mechanical system upgrades
I have a newer home, 2,100 square feet climate zone 3. I've paid for air sealing but the insulator cautioned that I need to be careful with the tightness. I…
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elbows in 4″ insulated venting
I'm installing my first Panasonic spot ERV, which calls for insulated venting for both exhaust and intake. My runs are a 10' vertical run down through interior wall, then a…
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Minisplit ice and pan heaters
We recently had a Mitsubishi FH12NA hooked up. Its been running for 6 days with a few below zero nights (northern NH). The ice formed below the pan is substantial…
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Intermittently Heating Garage
Hi Guys,I've got a problem I'm noodling around, and I'm hoping someone can offer some thoughts.I've taken up indoor cycling in my garage. Whilst doing this, I need the garage…
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bath exhaust fans instead of ceiling fan in cathedral?
Hi there!I really don’t like ceiling fans and have been searching for an alternative solution in my new construction project.I have a 32x20ft room with a shed cathedral going from…
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Fujitsu in Austin
Building a house in Austin TX. 1152 sq ft, 2 bedroom, 2 bath house with an open floorpan and somewhat unique design. Imagine a big room that then has about…
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Radiant heat
So I’m installing radiant heat under the subfloor between the joist, with the uponor joist track system. My question is, there will be tile floor above and I wanted to…
