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3 answers
77 views

12v heating element for hot water [closed]

I would like to know if it's feasible to use a 12v heating element, typically used for camping kettles, to heat water for use in a caravan shower. The idea is for offgrid camping as have a 12v leisure ...
phil's user avatar
  • 1
0 votes
1 answer
203 views

Water Heaters in Parallel on opposite side of house

We have 2 40 gallon electric Water heaters in Parallel on opposite sides of house. The amount of hot water we are getting from shower time for example leads me to believe we are only getting 40 ...
Spanky69's user avatar
-1 votes
2 answers
162 views

Does the water heater tank have anything to do with the house heat? [closed]

My water heater tank started leaking so we shut it off until we find the money to replace the water heater tank. However, we noticed that as soon as we shut it off, there is no heater in the house. ...
Rosario Urena's user avatar
9 votes
9 answers
4k views

Why would water faucets use a different energy source from the radiators?

In my apartment, hot water in the faucet is heated by an electric heater, while the hot water in the radiators for heating the rooms comes from a central gas boiler in the building. To me it seems ...
0x60's user avatar
  • 201
0 votes
4 answers
4k views

Propane vs electric water heater energy cost

My calculations tell me that propane water heater should be an economical alternative to an electric water heater. But, looking at Energuide labels of comparable water heater, I seem to be wrong. ...
Filip's user avatar
  • 111
1 vote
2 answers
100 views

Proportional circulation pump control - possible for "simple" pumps?

Thinking of implementing proportional pump control to raise efficiency in our hot water based heating system. Proper proportional control is possible using PWM control in high quality pumps like the ...
ppeterka's user avatar
  • 151
0 votes
0 answers
107 views

Procedure to pressure test a boiler for cracks?

What is the procedure to pressure test a house heater boiler, and the rest of the system? My plan is to remove any broken radiators and put in place a temporary PEX line between the inlet/outlet so ...
RocketManZ's user avatar
1 vote
2 answers
3k views

Can you use a tankless combi boiler ONLY for central heating?

We're looking into replacing our boiler. The current one is tankless and only provides hot water for heating on a closed loop. There is an entirely separate electric HW tank & plumbing for '...
StayOnTarget's user avatar
  • 5,635
0 votes
1 answer
90 views

Did Dishes with Radiator Water For a Year [closed]

The valves connected between my (serpentine) hot water tank and radiators is broken. Moreover the serpentine is broken and hence the hot water for showering and doing the dishes has been cross-...
Martin Geller's user avatar
7 votes
2 answers
2k views

(When) Does room messiness affect water heater efficiency?

I have what I think of as a "standard US electric standby water heater." I will update this when I know the model; I am out of town right now. It is located in a cold, cluttered closet in a ...
capet's user avatar
  • 471
0 votes
0 answers
222 views

Should this heating system bypass valve be open during operation?

My son recently purchased a home with a hot water heating system. Unfortunately I'm not there to take better pictures. It is based on a Buderus Gas Heater. There appears to be a bypass line with a ...
drjrt's user avatar
  • 181
0 votes
1 answer
145 views

Help understanding heating system

I recently moved to a new home and I'm a bit confused about the heating system. I seem to have an immersion heater (which uses electricity?), and also something in the kitchen (that uses gas?). I had ...
rjdown's user avatar
  • 103
-1 votes
1 answer
2k views

Does my boiler try to heat water in my tank if it's already hot?

I've got a combi boiler which heats the hot water tank using the indirect method. I use Hive to control it. I'm trying to work out: if the hot water is set to on for an hour, will the boiler ...
AutoBaker's user avatar
  • 139
0 votes
2 answers
5k views

Can I use dedicated pool heat pump for heating water in the house?

I'm going to buy a small heat pump dedicated to pools (around 3.5 kW total output). The pump would not be used for 6-7 months a year (autumn/winter); can I plug it into an existing water heating ...
Alexander's user avatar
  • 101
1 vote
1 answer
153 views

Do I have a bad heating element in my electric boiler?

I have a Dettson Hydra20. Two days ago we woke up to 17C inside the house instead of the 21C set on the thermostat. The water temp on the boiler was at 40C and not moving. I also have a gas fired ...
Michael C's user avatar
  • 459
0 votes
0 answers
10k views

Water heater not producing hot water but everything seems to be working?

We just bought a house and the previous owner had a brand new water heater installed. The first day we took a shower it was not very warm and the next day there was no hot water at all. I checked the ...
Mike - SMT's user avatar
0 votes
1 answer
1k views

Heating above ground pool by re-circuplating pool water through tankless, on-demand water heater

Due to covid-19 all indoor pools in my area are closed for the foreseeable future. Kids being swimmers, I purchased an Intex 15' round above ground pool and installed in it in the garage. It worked ...
ssm's user avatar
  • 481
0 votes
1 answer
226 views

How to keep my tankless water heater safe in a cold room?

I have a room in my apartment that can sometimes get around 40°F (4°C), and that's where my new tankless water heater is installed. Should I take any special precautions to keep my pipes from freezing ...
capet's user avatar
  • 471
3 votes
5 answers
1k views

How much energy/electricity does a Tankless OR tank-based water heater consume?

Incoming cold water temperature: 11 Celsius (constant for the example). Indoor temperature: 20 Celsius (constant for the example). Let us have two choices: Tank-based water heater solution: has to ...
pintereric's user avatar
0 votes
2 answers
6k views

Can I have a shared exhaust flue for a high efficiency furnace and tankless water heater?

I recently purchased and am installing a 96% efficiency two-stage gas furnace. The old unit was an 80% efficiency unit using a 4" metal flue. This flue merges the exhaust of both the hot water heater ...
James Shewey's user avatar
1 vote
2 answers
518 views

Single cylinder set-up for geothermal heating and hot-water

I am looking to install a geothermal heating system to provide hot water and heating in a small home. I am aware that constant cycling of the geothermal heat pump is not desirable, so it is usual to ...
Matt's user avatar
  • 171
1 vote
2 answers
138 views

Why is my circulator pump heating my house?

Our house had always had some latent heat coming through the vents even when they were turned off, which was causing the temperature to be pretty unbearable during the summer. One day, we heard ...
Nathan Canning's user avatar
0 votes
0 answers
106 views

Moved into flat, cold water tank leaking, can it be removed?

Background I've moved into a flat recently and have been renovating. I'm doing all the work myself - have installed a new bathroom, new kitchen, new shower and cistern etc. and now I've realised the ...
EdFear's user avatar
  • 1
0 votes
2 answers
661 views

Bubbles in water heater system

My heater stops pushing hot water through the heating loop. The symptoms can be addressed by bleeding the system which always produces a lot of air coming out. The heating works for about 24 hours ...
bioffe's user avatar
  • 145
2 votes
2 answers
2k views

Will increasing the temperature of my hot water cylinder's thermostat make my shower water supply last noticeably longer?

I have an unvented electric immersion heater cylinder which heats the hot water for my household. The capacity is 200L and the temperature is set to 55°C. The water heater is hard-wired to run ...
WackGet's user avatar
  • 153
0 votes
1 answer
98 views

Heat an outdoor water tank to 10°C? (with an electric heater) [closed]

I have a stock tank full of water in a unheated greenhouse. The greenhouse is located east of Toronto, Ontario, Canada, where the temperatures occasionally go down to -25degC in winter. I would ...
User1974's user avatar
  • 1,198
4 votes
1 answer
6k views

In-floor radiant heating hooked up to hot water tank in new home - questions about how it works and operating it

I've moved into a new 2 story house. The heating system is in-floor water heating, and the heat source is an electric hot water tank. I'm hoping you guys can help me figure out how the system works ...
jmrah's user avatar
  • 143
0 votes
1 answer
4k views

Turning water off to house for a vacation, does furnace need to go off as well?

I am going away for a week, I want to shut off all water to my home. I have an oil furnace, with a separate water boiler (connected to the oil furnace - there is no gas in the house). It is summer in ...
Reg's user avatar
  • 1
0 votes
2 answers
3k views

Can a new water heater cause a Aquatherm heating system to fail?

I am quite unfamiliar with central heating systems, let alone those that use hot water as the heat source, so please forgive my clumsy attempt to ask this question. I have a First Co Aquatherm "Combo ...
tek's user avatar
  • 101
1 vote
1 answer
4k views

Solar Water Heater Exchanger Removal, Glycol Removal

I have an old Reynolds Solar Hot Water Heater and would like to uninstall/remove it safely. All my solar panels were removed years ago but the tank is still here. COLD and HOT lines leading to solar ...
invulnarable27's user avatar
0 votes
1 answer
58 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? ...
mehale's user avatar
  • 1
1 vote
1 answer
479 views

Boiler system shows different pressures

I recently had to change the expansion tank on our boiler. I decided to add a shut off with drain as well as a pressure gauge to make it easier going forward. I've come across a problem. The pressure ...
LBJ33's user avatar
  • 206
2 votes
2 answers
3k views

Can i use a water heater as my source for the in floor Pex tubing system?

I installed Pex tubing in concrete in 2 areas, both garage floors. I have been told 2 things.... one is that it will require a boiler, two, that a hot water tank will do the job. Cost is a huge factor ...
J.Christian Haller's user avatar
1 vote
2 answers
339 views

Hot water heating system: Renew or replace?

Our home was built around 1963 and has Gas powered Hot water based heating, some portion of the house is floor heated and some with radiators emitting heat from hot water. The heater may be 10-12 ...
iraSenthil's user avatar
1 vote
4 answers
5k views

Combi boiler doesn't realise it's already lit

I have an Ariston Eurocombi (A23). The problem is it doesn't realise the flame is lit. When I start it up and cause demand (run hot tap or turn on heating) it fires up the flame correctly, however, ...
matt burns's user avatar
0 votes
2 answers
13k views

How do I remove a stubborn element from a water heater?

I need to pull and replace the elements in my water heater. The problem is, I can't get the old ones out. My Channellock pliers can get a grip, but slips off pretty easily. Is there something ...
Tom A's user avatar
  • 313
2 votes
1 answer
230 views

What to look for in a new water radiator?

The water radiators I have under each window are 50 years old, and I would like some new ones. They measure HxLxD 50x100x20 cm. The new ones I would like should be as thin as possible. I live in an ...
Sandra Schlichting's user avatar