Questions tagged [water-circulating-heating]
A central heating system that transfers heat from a boiler to each room through a fluid filled plumbing system.
78
questions
2
votes
2answers
34 views
Power consumption of valve actuators
I would like to acquire some actuators for my radiator valves. I would like them to consume as little electricity as possible. I therefore consider it is better to take normally closed actuators ...
0
votes
1answer
30 views
Circulation pump doesn't give enough hot water
I just got a new 50 gallon water heater and my circulating pump would only keep the hot for 1 shower (progressively getting cooler until completely cold). When I turned off the circulating pump the ...
0
votes
0answers
14 views
White residue on flow heater pipe
My flow heater (Vaillant VED E 18/7) stopped working when I switched a breaker off. Upon opening the casing, I found out two things:
1: The water intake pipe has a small white discoloration and seems ...
1
vote
0answers
47 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, ...
0
votes
1answer
41 views
How can I figure out if a Combi Boiler will be adequate for my house?
We recently moved into our new home that currently has a Super Hot MG-100 Hydronic Boiler (installed in 1986, when the house was built). Clearly, it's done its job and in need of a replacement. We had ...
0
votes
0answers
27 views
Boiler not circulating
I have a Bosch 30 HRC boiler. Yesterday, I added water to the system, increasing the pressure from 1 bar to just below 2 bar. I vented each radiator in the house to bleed the boiler.
When I open the ...
1
vote
1answer
22 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 ...
0
votes
1answer
25 views
Removing hotwater baseboard heater
I would like to remove the wallplate of my baseboard hotwater heater element. I got everything apart except the wallplate which I can't get off. I removed the nails that I thought were the only thing ...
0
votes
2answers
84 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 ...
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
0answers
30 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 ...
0
votes
0answers
16 views
We have a ranch home with baseboard heat, 2 zones work 2 zones dont
We have 4 zones and 4 thermostats with baseboard heat in our ranch home.. 2 zones are working, and 2 zones are cold. What would cause this?
0
votes
2answers
171 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 ...
1
vote
1answer
353 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
630 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(...
0
votes
1answer
157 views
Is hydro air more efficient than gas/oil?
I have heard different things about hydro air systems.
I am considering getting one because it is a 5000 SF house and a 1500+ SF addition is planned and I heard that it is easier to expand a hydro ...
0
votes
0answers
43 views
Could I use perlite under floor heating foam panels?
Context:
I want to install an in-floor water based heating system in an apartment on a higher floor.
As such, there are 2 problems:
I cannot afford to have 2 layers of screed (because I need ...
0
votes
0answers
96 views
Peerless Boiler not heating - No flame
I have a Peerless boiler and today woke up to it not heating the water. The water definitely feels like it is circulating through the pipes, but the water temp isn't getting over 60 degrees. We had it ...
0
votes
1answer
88 views
Should hot water heater pipes in the basement be insulated?
I have a Gambrel style home with gas fired baseboard hotwater system. The hotwater pipes in the basement are located to the outside wall. These pipes are not wrapped in insulation. Would wrapping ...
0
votes
2answers
964 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 ...
0
votes
0answers
20 views
Vibrating through beams from circulator pump and at strange times
I have a grundfos alpha 2 circulator pump which for the last two years (since I moved into the house) when the heating turns on makes a vibrating noise. This vibrating noise I believe is then ...
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 ...
0
votes
1answer
32 views
Bedroom Radiator not operating properly
We have two nest thermostats installed over a month ago and i am not sure the issue was after or before the installation of nest thermostat.
We have two zones of heating installed in our house.One is ...
0
votes
1answer
813 views
Nest E thermostat on ancient 2-wire Bryant boiler system with 2 zonesq
I have a 2-zone hydronic system running off an ancient Bryant boiler. Power is supplied by a 24V transformer, and each red wire passes through a Taco zone valve before heading off to the appropriate ...
1
vote
1answer
68 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 ...
0
votes
2answers
116 views
Hot Water Baseboard Heaters
A contractor came to add an additional hot water baseboard heater into our family room which is an add-on, because there was no heating element in this added room and we could not use the space in the ...
0
votes
1answer
381 views
Rattling sound from heating pipes
I keep on hearing a rattling sound like metal banging from 1 section of pipe in my hydronic heating system, I tried bleeding but no improvement. Thanks
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
0answers
2k views
What is this blue build-up on my pipes, and is it an issue?
I've looked around the intertubez, and think this MIGHT be galvanic corrosion, but there was NO sign of it when we bought our 1930's house 5 years ago. The Taco pump WAS replaced 3 years ago (that's ...
0
votes
1answer
48 views
Retroffiting buried pipes that carry hot water?
I am considering to improve the efficiency of an existing installation where heat pipes between house and hot water deposit have been insulated with a thin (10mm) neoprene sleeve and directly buried?
...
0
votes
2answers
212 views
Boiler vent and expansion tank leaks
I had my boiler inspected and cleaned recently and the tech found a few issues. He showed me how the valve on the expansion tank would leak when he would push it in, which means the tank needs to be ...
0
votes
1answer
881 views
What is/are this/these fittings connecting my boiler to circulator pump?
There's a leak somewhere around my circulator pump and the fittings that connect it to the Weil McLain CG-5 gas boiler have corroded and should probably be replaced. (right?)
Not very familiar with ...
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 ...
2
votes
1answer
3k 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
770 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 ...
0
votes
0answers
62 views
Shower temperature hot or freezing
Our gas powered shower has been gradually needing an increase in temperature over the last few months in order to have a warm shower. Originally a 32 degree shower was perfect, but gradually we have ...
0
votes
1answer
129 views
Underfloor heating and how R values affect it
I am moving into a new house that has underfloor heating (wet system) throughout the ground floor.
I am trying to decide what flooring material to use. (tile or wood)
I know that tile will be a ...
1
vote
1answer
71 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
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
114 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 ...
2
votes
1answer
75 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?
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
2answers
672 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 ...
0
votes
1answer
217 views
How to get heating system working again?
We have an oil-fired boiler that does both the hot water and the forced hot water baseboard heating system.
It was unusually cold and windy last night here in north-central Massachusetts. I turned ...
1
vote
2answers
3k 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
2answers
6k 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 ...
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 ...
0
votes
3answers
7k views
Hot and Cold water seem to be mixing
Having a problem with hot and cold water seemingly mixing in my house where some locations can't get cold water and others get a mix of warm/cold from hot settings.
The scenario:
Moved into a new ...
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 ...
2
votes
0answers
38 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?
