Questions tagged [zoned-heating]
The zoned-heating tag has no usage guidance.
15
questions
1
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0answers
11 views
Strange behaviour with 4 zone central heating timer (John Guest TM4 / Heatmiser TM4)
I have a 4 zone heating timer (HW, Underfloor Heating, Towel Rail and the 4th zone is unused).
I moved into a new build a few years ago. After 3 years my heating timer unit (John Guest TM4) started ...
0
votes
2answers
29 views
Why does a system boiler with hot water cylinder not use a diverter valve?
I understand that it doesn't need a diverter valve... But I was thinking, couldn't the system be more efficient with one?
For example, the central heating could run at a low temperature (35°-40°) and ...
11
votes
5answers
2k views
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 ...
1
vote
2answers
90 views
HZ432 and no heat in one zone
I have 4 zones... The following lights are on the HZ432:
Heat 1 - red
Heat 2 - red
Heat 3 - no light
Zone 1 - yellow
Zone 2 - red
Zone 3 - red
Zone 4 - red
I have heat in 3 zones, but not in one of ...
1
vote
1answer
1k views
Are these red lights on my Honeywell HZ432 why my bedroom isn't blowing in heat?
I just moved into a new multi-family house with central heat/AC and the 3rd floor bedroom doesn't seem to warm up very well. When the thermostat is on, I don't feel hot air blowing in from the vents ...
1
vote
1answer
155 views
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 ...
0
votes
0answers
32 views
Four thermostats and three zone valves
I want to ask HVAC experts how to troubleshoot my floor heating system. I have a Lynx-85a boiler, pumping hot water into three zones, one per room and three zone valves. For some reason, original ...
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votes
0answers
36 views
Heat pump can't get a zone to 72° F
I have a heating system with both a heat pump and a boiler. The rule for the system is that if the temperature in a zone is 5° F less than called for, then the boiler will come on, but otherwise the ...
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1answer
99 views
Whole house humidifier when furnace is in unconditioned space
I have 2 furnaces, one in the garage and one in the attic. These are both spaces with unconditioned air, so they get very cold in the winter. The contractor who helped me configure my garage furnace ...
1
vote
0answers
467 views
How to wire a Taco zone valve controller with ecobee
I'm having an issue with wiring my Weil McLain gas boiler. It was wired up fine and working for a single zone. I added (2) 4 wire zone valves in. So I now have 2 zones, a Taco zone valve controller(...
1
vote
1answer
730 views
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 ...
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votes
3answers
937 views
What are normally-open hydronic zone valves used for?
In a hydronic (hot water) heating system electronically operated valves control whether hot water runs through a particular zone of the building, or not.
It seems to be a common setup for the valve ...
0
votes
2answers
189 views
Difference between geothermal and regular hydronic zone valves
Taco makes two variants of zone valves - one type for general hydronic use, and another type marketed especially for geothermal use.
What is the difference in valves that particularly suits them for ...
1
vote
0answers
42 views
Some baseboard in one zone are getting hot and some are not
So I have one zone with two split loops. One loop is getting hot, the other is not. In the boiler room where the zone splits into two loops i can already feel that one is hot and one is barely warm.
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0answers
226 views
Nest + opentherm + zone valve
I have a Nest 3G, I'm now considering to change my boiler due to age-related issues. Can someone tell me if I can connect the Heat-Link to both zone-valve (on/off contacts) and boiler (OpenTherm).
I ...
