Mechanicals

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1 or 2 heat-pump water heaters? 3 15 weeks 4 days ago
by Daniel Herskowitz
15 weeks 3 days ago
by Dana Dorsett
Only an inch gap below interior door — is that enough to promote air return in a bedroom with a closed door? 1 16 weeks 1 day ago
by Fabiano Pita
16 weeks 22 hours ago
by Martin Holladay, GBA Advisor
Edwards valance? 1 16 weeks 2 days ago
by Jerry Liebler
16 weeks 2 days ago
by Martin Holladay, GBA Advisor
Can an 80% efficiency furnace be installed in an attic in zone 6B? 1 16 weeks 3 days ago
by Anne Sullivan
16 weeks 2 days ago
by Martin Holladay, GBA Advisor
HRV: connect to the air handler or not? 3 17 weeks 3 days ago
by Dave Morgan
17 weeks 2 days ago
by Dave Morgan
What is unbalanced? 1 17 weeks 3 days ago
by John H. Stehman
17 weeks 2 days ago
by Martin Holladay, GBA Advisor
This is definitely more of a diagnostic repair question than a green building question but I think you all might like the challenge. 4 21 weeks 6 hours ago
by David Fleuchaus
17 weeks 4 days ago
by David Meiland
Are cupolas worth considering on a well insulated home for ventilation? 5 18 weeks 6 days ago
by russell berenson
17 weeks 6 days ago
by Keith H
Ventilating dehumidifier - program settings? 3 18 weeks 2 days ago
by J Heckmann
18 weeks 2 days ago
by Martin Holladay, GBA Advisor
Why are my windows wet? 4 18 weeks 4 days ago
by Jeffrey Lyon
18 weeks 3 days ago
by Martin Holladay, GBA Advisor
Minisplit blowers mounted low or high? 2 18 weeks 5 days ago
by Daniel Herskowitz
18 weeks 4 days ago
by Dana Dorsett
Help me understand my Manual J 10 19 weeks 2 days ago
by jason c
18 weeks 4 days ago
by Dana Dorsett
Gas heated steam radiator system 4 19 weeks 3 days ago
by Daniel Herskowitz
18 weeks 5 days ago
by Daniel Herskowitz
Can copper sulphate be removed from water supply? 3 20 weeks 1 day ago
by phillip rhudy
19 weeks 6 days ago
by Nelson Labbe
Can I put a ductless mini split condensor/compressor in an unconditioned cellar? 9 21 weeks 2 days ago
by Daniel Herskowitz
20 weeks 4 days ago
by Dana Dorsett
Our water heater needs to be replaced and we are considering getting a heat-pump water heater 5 20 weeks 6 days ago
by Leah Marshquist
20 weeks 6 days ago
by Nick Welch
Off-the-electrical-grid propane water heaters -- either tankless or tank 1 21 weeks 10 hours ago
by Mike Pease
20 weeks 6 days ago
by Martin Holladay, GBA Advisor
Relocating drains to maximize drain water heat recovery 10 22 weeks 2 days ago
by Nick Welch
21 weeks 4 days ago
by Malcolm Taylor
Is a hybrid heat-pump water heater worth it in a basement in the SE? 4 22 weeks 5 days ago
by Brad Abernethy
22 weeks 2 days ago
by Dana Dorsett
Radon in well water 4 23 weeks 3 days ago
by tom ruben
23 weeks 3 days ago
by Martin Holladay, GBA Advisor
Heating Make-up Air 4 26 weeks 5 days ago
by Bill L
23 weeks 5 days ago
by Bill L
Heat & cool new PGH house w/ one mini split head & ERV? 8 24 weeks 1 day ago
by Christopher Vernott
23 weeks 5 days ago
by Dana Dorsett
Thermostat or thermostats for 3 zones of hydronic and forced air 3 24 weeks 3 days ago
by Nick Zees
23 weeks 6 days ago
by Nick Zees
Tracking HRV energy 1 23 weeks 6 days ago
by Hobbit _
23 weeks 6 days ago
by Martin Holladay, GBA Advisor
Help sizing HVAC - Hot2000 analysis included 8 39 weeks 6 days ago
by Shaun Malmo
24 weeks 5 hours ago
by Shaun Malmo
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