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fitter30's latest activity
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fitter30
replied to the thread
R22 Dupont 50lb Bottle Price Virgin California
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There are companies that buy refrigerate. Part jugs and full. Look on the web.
Thursday at 3:12 PM
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fitter30
replied to the thread
Which Boiler do I need?
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Q Have electric radiate under ceramic tiles in a family room. Run it around 75°
Sep 6, 2026
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fitter30
replied to the thread
Which Boiler do I need?
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There a difference when you have a 70° space and 85° floor temp. RH falls as temp rises. Dries out the wood...
Sep 4, 2026
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fitter30
replied to the thread
Which Boiler do I need?
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147,900 btu's total each zone 49,300 btu's Flow through each loop 1 gpm Head .03X300= .9' then add 2' for piping around the boiler. In...
Sep 2, 2026
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fitter30
replied to the thread
Which Boiler do I need?
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Size of pex ,lenght of loops and number of them. Mernards thinks im a bot.
Sep 2, 2026
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fitter30
replied to the thread
AC Condenser Replacement.
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Retired 14 years probably 10 years before that two pole contactors were normal for 480 vac 3 phase, 240 and 208. Before i retired went...
Sep 1, 2026
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fitter30
replied to the thread
Viessmann 100-W install for radiant heat- Coxial Venting?
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Will the supply house you purchase the boiler make a call to engineering or a factory service person that takes care of your area. Not...
Aug 31, 2026
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fitter30
replied to the thread
AC Condenser Replacement.
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Just remember with a two pole contactor one leg will be hot all the time power is on. Also good time to check blower and evap coil for...
Aug 30, 2026
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fitter30
replied to the thread
Installing two TCL 36k heat pump mini splits in my central OK 40x50x14 red iron shop. R454B units, need to pull vacuum, need adapter...
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https://www.walmart.com/ip/3Pc-R32-R454B-Reverse-Thread-Brass-Adapter-1-4-Inch-Female-to-Male-Fitting-for-Refrigerant-Tank-Vacuum-Pump-an...
Aug 24, 2026
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fitter30
replied to the thread
Insulation heat-loss improvement, system sizing
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Contact their electric company see if they offer a energy audit with a blower door test. Might also include some rebates on new...
Aug 22, 2026
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fitter30
replied to the thread
Does Radiant Floor heat make sense
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Mass is harder to heat than air. Mass- concrete slab and all the stuff in the building. Radiate heat in floor is the best heat. A big...
Aug 21, 2026
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fitter30
replied to the thread
Apprentice loadout?
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Worked three years in residential non union then went commercial/ industrial for 40 years more. Small contractor that i was hired for...
Aug 20, 2026
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fitter30
replied to the thread
Multizone Mini-split
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All minis in the install manual and brochure state max line lengths and height difference. As for as different size evaps when i bought...
Aug 20, 2026
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fitter30
replied to the thread
Experience with Mitsubishi or other "ducted minisplits"
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Would imagine that if you contacted any other hyper heat manufacturer they would have the same limitations for operating temps...
Aug 19, 2026
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fitter30
replied to the thread
Attic temperatures
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The solar heat gain from shingles outside temp 100°is 150-180° surface temp. Square foot attic X .7= cfm needed to drop temp 60°. Plus...
Aug 19, 2026
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