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17 votes

Can I use electric radiant heating as primary heating?

You can. But don't. Resistance electric heating, no matter what the fancy name, is really a giant toaster. Toasters are wonderful things - for making toast. But you use a toaster for a few minutes a ...
manassehkatz-Moving 2 Codidact's user avatar
7 votes

Can I use electric radiant heating as primary heating?

I had our oil-fired hot water baseboard (HWBB) heat removed when we had our major renovation done, went with all-electric (heat pump), and regret not leaving the hot water BB in. The heat pump works ...
SteveSh's user avatar
  • 6,902
5 votes

How do I completely drain and decommission hydronic radiant heating system?

I would approach this as if it was a sprinkler system... with compressed air. If you can, work each circuit individually. If not, work the longest or furthest ones first. You could also simply use a ...
isherwood's user avatar
  • 139k
5 votes
Accepted

is it okay if heat exchanger's secondary is connected reverse

You want to get that corrected. Plate heat exchangers like the one you have can be used in two arrangements: parallel flow (co-current): both inlets on one end, outlets on the other, which is what ...
TooTea's user avatar
  • 2,332
5 votes
Accepted

What power supply wire for underfloor heating?

Yes, because you are using the 240V version According to the web site, they sell mats that are 3 feet wide x various lengths ranging from 4 to 30 feet. It appears to my eye that these mats use 11 ...
Harper - Reinstate Monica's user avatar
4 votes
Accepted

Floor heating is not as warm as I was expected

Floor heating systems are very slow and normally meant to run 24/7 except for long-term absence (> 3 days), if the building hull is insulated to some extent or if it is a huge building with high ...
xeeka's user avatar
  • 2,558
3 votes

Can I use electric radiant heating as primary heating?

Stepping away from oil is awesome for national security, as current events certainly show. (using less oil allows us to support our allies so they are not dependent on fascist governments, which seem ...
Harper - Reinstate Monica's user avatar
3 votes
Accepted

Do I need insulation under electric floor heating in appartment bathroom?

Of course some of the heat generated by your cable will be conducted down into the slab but since it's located much closer to the upper surface, most of the heat will go where you want it to go. I am ...
jwh20's user avatar
  • 23.4k
3 votes

Can I use electric radiant heating as primary heating?

My retired parents had electric base board heat and liked it. A small ( 1000 sq.ft) new , well insulated house in a mild climate; northern Arkansas. Each room could be set at a different temperature. ...
blacksmith37's user avatar
  • 8,311
3 votes

Is high temperature an issue with underfloor heating?

I have in floor heating (pex tubing in lightweight concrete) and it's inherently slow. You can't do normal "setback at night" sort of programming and expect 6-8 degrees of recovery quickly ...
George Anderson's user avatar
3 votes
Accepted

What breaker and wire gauge can I use for my heated floor cable?

If the load of the amount of cable you will be installing is 10 Amps at 240V, then you need 12.5A @240V for code to be happy with "adequate supply for a heating load" Nobody makes a 12.5A ...
Ecnerwal's user avatar
  • 217k
2 votes

Venting floor heating

Your hydronic floor heating system could have several problems. You'll want to troubleshoot to narrow it down: If you hold the pipe that returns from the upstairs room, is it warm like the other ...
freshop's user avatar
  • 1,876
2 votes
Accepted

How to balance in-floor heating with forced air heat pump

I have a pretty similar setup. But in my case the forced air is "aux heat" as programmed in the T-stat. In other words, if the in-floor system can't maintain temp, the T-stat will kick on ...
George Anderson's user avatar
2 votes

underfloor heating and mold forming

It is very normal to install underfloor heating under wooden flooring, in fact in Scandinavia the majority of houses with underfloor heating have wooden floors. Wood does insulate to a certain extent ...
Alan's user avatar
  • 21
2 votes
Accepted

How should a plumbing system that contains underfloor heating and a back boiler be designed?

That's overkill. All you need is a heat exchanger. It's vital to separate the system that can boil from the system that can't boil. PWR/VVER nuclear reactors have a similar heat exchanger ...
Harper - Reinstate Monica's user avatar
2 votes
Accepted

Expansion tank position within thermo-hydraulic separator system

If this somewhat confusing due to local terminology not disambiguated question is about a circulating heating loop, the expansion tank goes as close to the inlet of the (unseen) circulating pump as is ...
Ecnerwal's user avatar
  • 217k
2 votes
Accepted

Is it dangerous to have a bathroom floor mat on my heated tile floor?

It may be dangerous, depending on the size and thickness of the mat and the design of your heating. Why would your floor be constantly wet? For a heated floor use a lightweight mat (just a thin towel)...
jay613's user avatar
  • 39.1k
2 votes
Accepted

Non-return valve with hydraulic separator

A system like you showed does not need non-return valves as a backflow prevention mechanism. In the comments you mentioned a concern about pressure buildup from the expansion vessel and that causing a ...
Bart van Ingen Schenau's user avatar
2 votes

Nervous About Hydronic Floor Heating

I don't have LVP but I do have hydronic floor heating aka radiant heat. I have PEX tubing below a 3/4" plywood subfloor with 3/4" solid oak flooring on top, and no carpets. There's ...
MTA's user avatar
  • 11.4k
1 vote

No water in circulator pump? Hydronic heat with electric hot water

just because the expansion tank has a sticker saying precharged to 15psi [which they all do and come that way from the factory] doesn't mean it actually has 15 psi of air in it. you have to check it ...
ron's user avatar
  • 1,204
1 vote

Do I need insulation under electric floor heating in appartment bathroom?

just have insulation directly under your heated mat , over concrete so that the heat is spread out evenly. regardless of heat loss , just more comfortable not to be able to feel hot and cold spots ...
jabe's user avatar
  • 11
1 vote
Accepted

Plumbing/piping diagram symbol identification

#2: By where it is in the flow, I'm guessing pressure-limiting make-up valve, with gauge. That would make #4 just a pressure gauge. #3: This is in the flow for household water but not for heating ...
keshlam's user avatar
  • 29.5k
1 vote

Plumbing/piping diagram symbol identification

#1. Looks like a pressure relief valve? #3. Maybe a pump? #4. Drain valve? #5. shutoff valve: The arrows like under 5 are just showing the direction of flow, not part of the symbol I think (see ...
Armand's user avatar
  • 4,428
1 vote
Accepted

Expansion tank vs. safety valve position

expansion tank should be installed between safety valve and heat pump unit That is your answer. This answer assumes that the non-return valve is to stop water flom flowing back from your heater into ...
Chris O's user avatar
  • 6,795
1 vote

floor heating from the basement ceiling

I'd venture to guess that turning on the basement heat pump at 300+% efficiency would beat running electric resistance heat at 100% efficiency, and requires no additional install expense.
Ecnerwal's user avatar
  • 217k
1 vote

How to properly pipe a hydronic heating system

This isn't an "answer" but a caution. I have a hydronic, in floor heating system in my house and let me tell you, there is a LOT of design and engineering to do to get this right. Even the ...
George Anderson's user avatar
1 vote
Accepted

Can I put plywood over Schluter radiant heat

As per a couple of suggestions, I did contact the manufacturer and got a prompt reply indicating that it would not be covered by warranty if installed that way. Thanks for the suggestion.
Brian Howden's user avatar
1 vote

Venting floor heating

Is your house a multi story house and if so how many floors are there? How did they run the heating tubing for the upper floors? You said that 3 rooms upstairs do not get warm. Do any of the rooms ...
d.george's user avatar
  • 12.4k
1 vote

What is the function of this controller and what does different settings do?

Doing random searches, I searched for 750 E1 E6 and found this datasheet. http://www.winterspm.com/wp-content/uploads/Operating-Instructions-for-Cuirt-Seoige-Underfloor-Heating.pdf
Mukul Goel's user avatar
1 vote

Floorheating: which material for the floor saves warmth at best?

You’re looking for something with “thermal mass”. I’d use tile, concrete or rock material. All can absorb heat and then release the stored heat later. Here’s a website that explains it: https://...
Lee Sam's user avatar
  • 23.3k

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