Mechanicals

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Wall vent vs. roof vent 8 23 hours 38 min ago
by Matt Cibula
5 hours 15 min ago
by David Meiland
What's the best way to integrate rain water to a condo system? 2 1 day 9 hours ago
by Osman Naskali
11 hours 29 min ago
by Nathaniel G
Best HVAC for a 1,100 sq. ft. passive solar house at 46 N latitude? 22 4 weeks 2 days ago
by Randy Bunney
4 days 3 hours ago
by Eric Habegger
New study on heat pump water heaters' reliance on the home's heating system and viability of ducting the HPWH 15 2 weeks 2 days ago
by Nick Welch
4 days 3 hours ago
by John Semmelhack
Minisplit setup for New Jersey, 750 sq. ft. house over crawl. Bouncing my HVAC contractor's plan off you guys. 6 1 week 2 days ago
by Lance C
1 week 3 hours ago
by Lance C
What is the calculation method to determine the actual BTUH output of a hydronic radiant floor? 3 1 week 2 days ago
by GBA Team
1 week 1 day ago
by Richard McGrath
Mitsubishi mini split behaving very differently with external thermostat vs. without 16 2 weeks 5 days ago
by Nick Welch
1 week 2 days ago
by John McManus
How to optimize HVAC ducting 1 1 week 4 days ago
by Dick Lowman
1 week 3 days ago
by Dana Dorsett
Can I make mini splits more efficient at extreme temperatures? 12 1 week 4 days ago
by Phillip Roshak
1 week 3 days ago
by Dana Dorsett
New Mitsubishi Hyper Heat multi splits have finally arrived 2 1 week 5 days ago
by Nick Welch
1 week 4 days ago
by Keith Gustafson
Boiler water temp not matching aquastat setting 11 1 week 6 days ago
by Ric Pasqua
1 week 5 days ago
by Richard McGrath
Closing vents in unused rooms 6 2 weeks 6 days ago
by Stephen Martinson
1 week 5 days ago
by James Morgan
Two layers of R4.2 on attic ductwork 1 1 week 6 days ago
by Ross Neag
1 week 6 days ago
by Dana Dorsett
Heat pump COP vs. capacity 3 2 weeks 3 days ago
by Hobbit _
2 weeks 3 hours ago
by Hobbit _
Placement of two minisplits 12 2 weeks 5 days ago
by Jeff Carroll
2 weeks 1 day ago
by Jeff Carroll
Wood floor underlayment over radiant heated floor 14 46 weeks 4 days ago
by Howard Klein
2 weeks 2 days ago
by Dana Dorsett
Better hot water source? 5 2 weeks 4 days ago
by Bob Earnest
2 weeks 4 days ago
by Joshua van Tol
Better option than a heat-pump water heater for a boiler? 11 3 weeks 4 days ago
by Jane Whitmire
3 weeks 10 hours ago
by Jane Whitmire
Asking for advice from off-gridders about the recent blog "Solar thermal is really really dead". 3 3 weeks 2 days ago
by Geoff Frood
3 weeks 15 hours ago
by Richard McGrath
Lunos and range hoods 5 3 weeks 2 days ago
by Stephen Youngquist
3 weeks 2 days ago
by Stephen Youngquist
Minisplit or air-source heat pump in a remodeled 1920 bungalow? 2 3 weeks 4 days ago
by Sam Mashburn
3 weeks 2 days ago
by D Dorsett
Need a furnace/AC for an apartment 2 3 weeks 5 days ago
by Brenda Fernandez
3 weeks 5 days ago
by D Dorsett
Solar thermal systems for heating water 50 5 weeks 6 days ago
by aj builder, Upstate NY Zone 6a
4 weeks 2 days ago
by Martin Holladay, GBA Advisor
Modern (hydronic) heating and what all should start to know as of 2014 87 7 weeks 3 days ago
by aj builder, Upstate NY Zone 6a
4 weeks 4 days ago
by Paul Kuenn
Is this furnace venting/leaking problem as bad as it looks? 17 5 weeks 1 day ago
by Nathaniel G
4 weeks 6 days ago
by Richard McGrath
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