Home Improvement Stack Exchange
Home Improvement Stack Exchange

Questions tagged [zoned-heating]

63 questions
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5 answers

Most cost effective thermostat setting: consistent temperature vs. lowest temperature possible

The problem: Our heating bills are about 25% higher than our average neighbors according to our bill, yet our temperature is always as low as we can stand it (mid 50's), we have excellent insulation throughout the house, we don't have drafty…
David
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What metrics determine whether a zone valve is a suitable replacement for another?

I need to replace a leaking zone valve in my basement. I think I found a replacement for it off of SupplyHouse.com but wanted to make sure it really is a suitably replacement before I pull the trigger on $150. My current White Rogers zone…
hotmeatballsoup
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How to test whether or not a breaker is powering a zone valve and thermostat?

I have a fuel burner (fuel oil) that heats water and provides my home with baseboard heat. I have two thermostats and zone valves, both by White Rogers (and both pretty old): one set for the downstairs and one set for the upstairs. I assume that…
hotmeatballsoup
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2 answers

Honeywell 5-wire zone valve wiring

TL;DR Is a jumper wire necessary between TH/TR and the left-hand END SWITCH? If so, what does it do? As requested, here is my best approximation of a wiring diagram: As it is now (note the missing jumper wire in the zone valve for T2): As it was…
Nigel Stackhouse
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1 answer

Is there a way to have one thermostat control a heat pump and a 3 zone hydronic system?

I have two heating systems that are independent of each other. One is a 3 zone hydronic system with 3 thermostats controlling a pump controller. The second system is a air to air heat pump without any form of back up heat. When temp's get to low…
Jeremy Coxon
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1 answer

HVAC Heat only comes on when Fan is set to "ON" (not Auto)

have a weird problem that JUST started happening. When I turn the thermostat up with the fan set to "AUTO", nothing happens. The furnace does not light and the fan does not come on. This worked fine (for many years) until a few weeks ago and…
Phil M
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1 answer

Zone Controller T-Stat Wiring w/ 24V transformer, isolation relays for 2 zones

I have a new Navien SmartZone+ 6-Zone Control for my boiler-based heating system. It is great, except it provides no power on C. I realize the internet has researched the heck out of adding a C wire. There are lots of solutions for different…
Todd Curry
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1 answer

Can you use 1 ecobee thermostat to control 2 zone valves for heating?

I previously had a single zone set up with 1 circulator. So i added an extra zone. Still have 1 circulator pump and I also picked up a tacozvc 403-4 box to set it up. My question is how can i rewire it to work? And can i use 1 smart thermostat…
Kirk
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How do thermostats behave in a dual-source heat system when they control only one source?

We are replacing our failing air conditioner and are considering heat pumps among the options. In heating mode, the heat pump would supplement our existing oil-fired boiler hydronic baseboard heat. I am confused about how thermostats would handle…
daxelrod
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How to bleed air from Force brand heating system with no obvious drain hookup

I have a Force brand boiler in the basement connected to a multi-zone baseboard system. I hear gurgling sounds in a number of the zones, and one zone doesn't reliabily heat (as of a few days ago). So I have decided to bleed the air from my system.…
Doug
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Two Zone Boiler System. One calls for heat, both zone return lines get hot

I have a newly replaced two zone boiler system and am having issues. One zone is the basement only, the other zone is first and second floor. I have basement zone at 70 and it functions as expected. However, even with the upstairs zone thermostat at…
Mike O'Keefe
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Hydronic heating system uses ONE line for supply and return?

Have just bought a house in which we've inherited a hydronic system - so just beginning diagnosis and diagramming, etc. It seems that radiators use only one line for both supply and return; presumably valves in each radiator regulate flow to that…
DrLou
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Can you use a Honeywell HZ322 for zoning with a single-stage HVAC?

The HVAC system in my home was already old when I bought the place a couple years ago, so I knew I would probably be replacing it before too long. The system is zoned with a Honeywell HZ322. This was installed by a previous owner, and was in place…
Dylan Cristy
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R and C wiring for Air Handler and Zone Panel

First time posting a question! But have been reading the questions/answers here for a while now. Ok- so I have a brand new Goodman Heat Pump system (GSZC + AVPTC air handler) I’ve installed in my house. My duct layout is broken out into 3 zones. I…
Labarc35
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Should I convert two AC units to a dual-zoned unit?

One-story 2200 square ft home, currently with two AC units, need replacing, which is better two AC units or a dual zoned hvac system?
Dessie Block
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