Questions tagged [water-circulating-heating]

A central heating system that transfers heat from a boiler to each room through a fluid filled plumbing system.

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8
votes
3answers
20k views

Can I convert a radiator to radiant floor heating in a room?

I am purchasing a new home, and designing some renovations to several rooms. The house has a gas boiler and radiators throughout the house. For the kitchen and upstairs bathroom, I will be putting ...
8
votes
2answers
13k views

Why does a single radiator need regular bleeding?

Almost all of the radiators (forced water) in my house heat up fine. However, a single radiator needs regular bleeding (~1/day) in order to heat. Note, this radiator is not at the highest point in the ...
6
votes
2answers
2k views

Broken Hot Water Circulating Pump - Shouldn't I still have hot water in showers eventually?

I have a Grundfos hot water circulator. After turning off the main to the house and the hot water circulator the other day to change out a valve for our dishwasher, the hot water circulator hasn't ...
4
votes
3answers
699 views

Why would cold water be introduced into underfloor heating system?

What connection has the cold water distribution to a washing machine and laundry sink have to do with my heating? There is a tap-off from one of the flow pipes for the heating which goes through what ...
4
votes
4answers
51k views

Why is it taking so long for my house to heat up?

Firstly, I should probably mention that I'm in the UK... My wife and I bought a house new from a builder over 9 years ago and have had no problems whatsoever with our central heating system in that ...
4
votes
1answer
530 views

What does a manifold do in an underfloor heating (UFH) system and why do they cost do much?

I am trying to understand what the manifold does in a UFH system. It seems to just be an overpriced collection of T joins connect in a row with a basic valve on each. What am I missing?
4
votes
2answers
71k views

How can I stop my radiators “clicking” when they're turned on or off?

I have a central heating system on a timer, and whenever the timer turns on or off, for around ten / fifteen minutes, some of the radiators in my home make regular clicking noises, kinda hollow-...
4
votes
2answers
627 views

Fill heat tank with glycol in off-grid system?

EDIT: I'm settling for a simpler system: no solar thermal panels; just a small 50 liter water heater, AC powered, run through the inverter. (So, practically no hot water in the winter time.) I'm ...
4
votes
3answers
1k views

heating zone stays hot even when the thermostat isn't calling

we're trying to solve a very strange hot water heating problem (drawing below). We just separated the the 2nd and 3rd floors in my house into two separate heating zones, and the 3rd floor is now ...
3
votes
2answers
5k views

How can I stop heat loss due to an uninsulated porch?

I have an enclosed porch with very little insulation, it is typically very cold in the winter. However, there is a radiator in the enclosed porch. I have a gas boiler heating system in the house. I'...
3
votes
1answer
11k views

What does C, W, Y and S Plans mean when talking about central heating controller?

I have seen control systems sold as C, W, Y, or S plan, what the difference? Are there any other common setups (These are water based CH systems, so are unlikely to be used in the USA)
3
votes
2answers
2k views

What is the impact of a backwards connected hot water radiator?

When building a hot water heating system the plumber has connected one of the hot water radiators backwards, i.e., the loop comes in at the bottom of the radiator and leaves the radiator on the other ...
3
votes
2answers
1k views

Banging behind wall when heat comes on

In the past day I started hearing a banging behind the wall of my house it seems when the heat comes on. We have water heated baseboards. We lived in this house nearly two years and never experienced ...
2
votes
4answers
519 views

How do I fix radiators that come on at different times?

We have radiators in all rooms but the ones in the bathrooms come on at different times to the rest of the house. This is particularly annoying when getting up at 6am and stepping into a freezing ...
2
votes
2answers
9k views

Using PEX for baseboard run

I had a copper (baseboard heat) pipe freeze and burst, and need to replace a run of pipe that's exposed to that kind of cold when it gets below 0F outside. The pipe is below the floor on an exterior ...
2
votes
1answer
33k views

How do I bleed baseboard radiators without a bleeder valve?

I recently bought a newly remodeled 1950's era house about two months ago. It has a Weil Mclain fuel oil boiler that provides heat to four different zones (loops) in the house. Each zone has a couple ...
2
votes
3answers
117 views

Stripping parquet floor glue to install underfloor heating

We have a huge lounge in our new house (in the UK) and it is covered with parquet flooring which we dislike. The little wooden blocks are starting to work loose here and there, so I don't see it as ...
2
votes
3answers
630 views

hydronic floor heating system efficiency - using concrete as thermal energy store or not?

I am renovating my house and would like some advice on floor heating for my living room. I have dug this room out to a depth of 97 cm to create a lower level. I have lined this box with 2.5 cm thick ...
2
votes
1answer
2k views

Rapid loud tapping in wall adjacent to radiator- when tenant above adjusts

Hello and thank you for your reply. I have a very loud and at times rapid tapping noise in the wall. The apt building is 2 stories high, I am located on the bottom floor (end of the plumbing line). ...
2
votes
2answers
714 views

What is the difference between EU and US radiators?

I have a single-zone hot water radiator system and I was looking to balance out differences in room temperatures without going so far as to install another zone at the boiler. While there are ...
2
votes
1answer
73 views

Hydronic heat radiators not used for long time - should they be drained?

What should I do with radiators that have been out of action for about 3 years since the boiler went on the blink? Is it better to drain the water out of the system while system is dormant?
2
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0answers
37 views

Expansion tank is cold

My old-style expansion tank is cold from top to bottom, but I hear boiling water in the pipes right above the gas furnace. Is that normal?
1
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2answers
2k views

How to block baseboard (water heated)?

I live in an apartment complex where my water baseboard heating is 100% controlled by the complex staff. This year has been particularly tough, as it's been very warm since winter started and even ...
1
vote
1answer
42 views

Is it possible to test a drained central heating system without filling it with water

Say there is a house with a just combination (combi) boiler for hot water, but the central heating system has been drained for a couple of years as the house has been uninhabited. Is it possible to ...
1
vote
1answer
68 views

Should I perform annual maintenance on our heating boiler?

We are new to having a boiler in our house. Should we be doing an annual inspection and cleaning of our boiler? One was done last summer. How often should the system be purged too? Thanks for clearing ...
1
vote
2answers
39 views

Using 6 gallon hot water tank as recirculation device

If I pump water continuously through a small 6 gallon hot water tank recirculating from a 60-70 gallon water tank will this work to heat the water over 36-48 hours? I'm not concerned about if it's ...
1
vote
1answer
241 views

Electric Radiant heating Vs Hydronic - What can I get?

I have a carport that was closed in to become a 3rd bedroom in our house. It has a low ceiling of approx 8 or 9ft. I gutted the whole room so it's down to the slab right now. I'm in the process ...
1
vote
1answer
2k views

What would cause a gas fired, forced water boiler to shut down?

I have a fairly old Peerless, natural gas fired, forced water boiler. It has an electric ignition system (White Rodgers 50E47-843 Universal HSI Ignition Module). A few weeks ago it shut down (safety ...
1
vote
1answer
67 views

What are these controls attached to my boiler for?

If it matters, I live in Ireland. We have an oil boiler powering a two zone hot water radiator heating system and a separate electric hot water tank for tap water. Outside our house in the corner of ...
1
vote
3answers
2k views

upgrade circulator pump in closed hot water heating system?

boiler is Weil McLain Gold CGa. current circ pump is Taco 007-F5, installed on return side, pumping water down, and into the boiler. I'm pretty sure this pump is under-sized, as the specs list a ...
1
vote
1answer
2k views

How to isolate a baseboard heater circuit, drain, purge?

I am renovating a kitchen and in the process have a need to remove a baseboard heater from a wall that will now occupy cabinets. The removal is straightforward and will take 10 minutes tops. However I ...
1
vote
2answers
107 views

What is involved in bleeding air from a multi residential hot water baseboard heating system installed in 1965?

Residents are complaining of banging in the hot water baseboard heating system in our multi-residential building built in 1965. How difficult/involved is it to bleed the pipes? Does it have to be done ...
1
vote
2answers
5k views

Why are some rooms warmer than others with radiant baseboard heat?

We have hot water baseboard radiation heat. How is it possible that the first room the hot water is supposed to heat is cold and the second and fourth room are to hot and the third and fifth rooms are ...
1
vote
2answers
3k views

how to drain a single loop in one of my heating zones?

I have baseboard hot water heat. In one of my heating zones, there are three "loops". (i.e. shortly after the supply leaves the zone valve, the pipes split in three directions. These pipes then ...
1
vote
2answers
141 views

Heat radiators not all working

I am new to this place and looking for help. Just feel that I wanna try to fix my heat system by myself rather than waiting for (really sucking) pes&g guys. Repairmen came days ago and was ...
1
vote
1answer
1k views

How should I install underfloor heating over OSB subfloor?

I need some help on my DIY project for underfloor heating system in an apartment. The question is on the screed requirements provided that I have the following (non traditional) setup. There is ...
1
vote
1answer
1k views

We have a Chromalox EDB-20-1 hot water furnace, and it sounds like a flowing stream whenever the water flows through the house

The pressure is fine (15 psi) and it heats the house fine. I would think the water needs topping up except for the fact the pressure is optimal. Any thoughts on what I can check/do? The sound is ...
1
vote
1answer
916 views

What does the low limit do, and where should it be set on an oil fired hot water furnace?

What does the low limit do, and where should it be set? My furnace has a honeywell triple aquastat relay and has a difference dial. Water temp is about 190 deg F. Also, water psi gauge is only ...
1
vote
2answers
399 views

Can I replace my oil-based water heater with several electric ones?

I was looking at this question, which is somewhat related to mine but didn't give me a good answer: How to evaluate the suitability of an electric tankless water-heater Basically, my mom's water ...
1
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0answers
41 views

Tankless Hot Water Recirculation

I recently had a Rheem Tankless Water Heater installed. The rtgh-95dvln-2. They installed the pump kit meant for the water heater, the ap17920. However, I do not have a dedicated recirculation line, ...
1
vote
1answer
21 views

Upgated pump for 10 zones, 3 floor house?

I currently have a tanco (I don't have the current model # now) in a 5 zone 2 story house. I was recommended to upgrade to a tanco 0010-F3-1IFC bc I am adding 5 more zones, and 2 zones will go up to ...
1
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0answers
27 views

Why am I getting cold water at faucets near the end of a circulation loop?

We have a circulating pump for our hot water tank - the pump sits between the tank and the line going into the house. The issue i'm facing is if the pump is not running, I get endless cold water to ...
1
vote
1answer
249 views

Sizing a circulator pump in a closed loop heating system with multiple zones

I'm thinking through an install of a new combination boiler in my house, and am confused with respect to picking the correct size circulator pump. I've found a few different references (e.g. https://...
1
vote
0answers
460 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
0answers
38 views

FHW oil basedboard radiators are hot even when t-stats turned off. Sediment in pipes?

I moved into a condo a few months ago. It has a forced hot water oil heating system. First floor is one heating zone; second floor is another; boiler is in basement. T-stats are manual/mercury dial....
1
vote
0answers
3k views

Water not circulating in one radiator on a hot water boiler

My boiler has 4 zones. Zone 1 is the bottom floor. There are two radiators in zone 1. I am replacing one of them, an old baseboard radiator, with a cast iron with similar BTU. We hooked up the new ...
0
votes
2answers
77 views

Can I adjust the temperature of the water in my radiators?

I'm a complete newbie when it comes to HVAC. I did manage to install a new thermostat with help from here so I try again. I have a oil burner baseboard hot water system. My hot tap water is also ...
0
votes
2answers
82 views

What is the typical (N.American/ UK) cost difference between greenfield installation of hot water heating and warm air (HVAC) ducting? [closed]

I am in a situation now where I am having to choose between hydronic heat distribution and forced warm air heating. There are many factors to evaluate and this question is not about the plusses and ...
0
votes
2answers
153 views

Hot water recirculation pump suggestion in home with return hot water line [closed]

We had a hot water re-circulation pump by water heater before and had it removed last December when we detected leaks around it. This is our setup: We have a return hot water line coming back to the ...
0
votes
2answers
798 views

What could cause my hot water to run out quickly… but only in the bath/shower?

My (London, UK) apartment building's hot water comes from a district heating system and is delivered to my apartment via a "Heat Interface Unit" within the property, owned and maintained by the energy ...