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
  • 135k
4 votes
Accepted

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

Pressure from the cold side is higher than from the hot side, so cold water is backfeeding through the circulator and on to the hot side to the faucets in use. Close the shutoffs you have for the ...
Jeff Meden's user avatar
4 votes
Accepted

How to block baseboard (water heated)?

Since this seems to be an ongoing problem for you, I might suggest a somewhat more formal approach to it. For instance, use magnets to attach toweling to the top of the radiator shell and let the ...
Ecnerwal's user avatar
  • 210k
4 votes
Accepted

What is the purpose of this disconnected copper pipe next to my baseboard heating?

Water supply to a (former) garage fridge. The location next to the baseboard is (presumably) a matter of where it was easy to run, not indicative of an association of the two systems. That size tubing ...
Ecnerwal's user avatar
  • 210k
4 votes

Connection between Copper and Pex pipe broke in extreme cold

Your "before" picture is too blurry to be useful, so try to remember: Did the end of the copper look like picture 1 below or picture 2? Picture 1 follows. This is a pex crimp coupling. ...
MTA's user avatar
  • 11.2k
3 votes
Accepted

Should I perform annual maintenance on our heating boiler?

The oil boilers I'm familiar with should be inspected and tuned annually. Many newer gas boilers need preventative maintenance only once every two years. I suspect pellet boilers want attention ...
keshlam's user avatar
  • 28.7k
3 votes

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

As the radiators heat and cool, they expand and contract. During this process they rub on the brackets that they are hung on. There should be small nylon horseshoe shaped inserts fitted into the ...
Paul Wallis's user avatar
3 votes

Nest E thermostat on ancient 2-wire Bryant boiler system with 2 zonesq

I just realized I never followed up on this. I was chasing a red herring, as the Next E turned out to be defective, and wouldn't charge under any circumstances. Nest replaced it for me and the new one ...
Polly Cat's user avatar
3 votes
Accepted

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

If you are just checking for leaks, you can pressurize the system with air, and wait to see if the pressure drops. If it drops, there's a leak somewhere.
Ecnerwal's user avatar
  • 210k
3 votes
Accepted

Using 6 gallon hot water tank as recirculation device

Let's say we're dealing with 70 gallons of water, and we're adding heat just by running a circulation pump to stir the water around. And, let's say the pump is a standard hydronic circulation pump of ...
Daniel Griscom's user avatar
3 votes
Accepted

GFCI outlet trips when one one device is plugged in even when it is off

If it's tripping the GFCI it is almost certainly defective. you could ask a second GFCI for a second opinion.
Jasen's user avatar
  • 20.6k
3 votes

What modifications needed in order to use used cooking oil for heating instead of diesel?

What you're looking for is "making biodiesel". This is a process called transesterification which converts the longer carbon chain molecules in the grease into shorter chain molecules. That ...
Harper - Reinstate Monica's user avatar
3 votes

Can a homeowner replace this radiant floor heating plumbing part?

I believe this is a pressure-reduction valve, with water entering from the top and continuing out the bottom. If similar to the one in the diagram below, the fitting on the side above the bell would ...
Armand's user avatar
  • 4,426
3 votes

Do I need to replace my noisy Grundfos UP15-29SU?

A very simple, first try would be to open the big center screw/plug which seals the ring gap between stator and rotor. Caution, the water can be very hot. Skin protection is necessary, if the water is ...
xeeka's user avatar
  • 2,548
2 votes

Hot and Cold water seem to be mixing

From your comment "re-plumbed for code reasons" and the odd behavior you're experiencing, I suspect the hot water circulation system might have been patched/crossed into the cold water system and/or ...
Chris Galas's user avatar
2 votes

How to block baseboard (water heated)?

In Russia, they just left the windows open. A photo would help. In general your towels or foil are safe to use, the towels will probably work best. You want to block airflow as much as possible, ...
Bryce's user avatar
  • 10.9k
2 votes
Accepted

How to get heating system working again?

Step zero for the future (you've figured this out by now, but let's state it loud and clear) - extreme cold is when you don't want a setback at all - I shifted my thermostat from its usual automatic ...
Ecnerwal's user avatar
  • 210k
2 votes

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

I have done this to some of my renovations and I was able to do two types of installation. One was to save space in a bathroom with a radiator and the other was to save space in the kitchen just like ...
Frank ciavarra's user avatar
2 votes

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

It sounds like the clicking noise is not the radiators, but the pipes expanding and contracting. The clicking noise is sometimes due to the pipe moving in the clips that are holding it, or maybe where ...
Ken's user avatar
  • 21
2 votes

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

It sounds like you have hot water (hydronic) baseboard radiators, something like this: Tapping noises in these systems typically happen due to thermal expansion. The copper pipes expand as they heat ...
Shimon Rura's user avatar
  • 8,222
2 votes

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

Real pricing would depend on the actual type of installation of each system you would choose to install. For example; Hot water systems could be as simple as a series loop system or as costly as a ...
d.george's user avatar
  • 12.4k
2 votes
Accepted

What are these controls attached to my boiler for?

This is a thermostat (or aquastat) that regulates the temperature in your boiler. Appears to be an IMIT TLSC model. Here's a similar product on amazon. According to the instructions below, that ...
Shimon Rura's user avatar
  • 8,222
2 votes
Accepted

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

To me it sounds like an anti scauld valve is not working correctly. If you have a thermometer could you try just turning on the hot and see if the flow almost stops and what the water temp is. This ...
Ed Beal's user avatar
  • 103k
2 votes

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

Boilers typically have a aquastat, high limit, low limit in one of several configurations. This is an all in one unit specific to oil. www.inspectopedia.com Most aquastats look something like ...
Joe Fala's user avatar
  • 6,354
2 votes
Accepted

Baseboard water heat not heating one room; Rest of zone/house is good

First, if this is a forced hot-water system with baseboard heating, they're called convectors, not radiators. Bleeding the system is fairly simple (though a bit messy and time-consuming), and, as you ...
DrMoishe Pippik's user avatar
2 votes

Can I reduce temperature in one room on my hot water furnace based system?

Most hot water baseboards have a "flap" which can be used to regulate the heat output so the system can be balanced, since there are often long runs serving multiple rooms. The flap can be ...
Ecnerwal's user avatar
  • 210k
2 votes

Can I reduce temperature in one room on my hot water furnace based system?

If you can't reduce the overheating in that room by any of the ways the other guys suggested, you might want to wrap the heating element with aluminum foil. Start with wrapping about 2 feet see the ...
d.george's user avatar
  • 12.4k
2 votes
Accepted

Radiator leaking from valve-less end

This is really a bad spot to be leaking considering that it's only about 12 years old. It's leaking where an attachment fitting is welded to the tank and with the amount of corrosion around it, a ...
JACK's user avatar
  • 79.9k
2 votes

Why does my radiant heater have multiple zone valves?

Difficult to know for sure without asking the designer. For instance, there might be limiting sensors to keep the floor from getting too hot, that might be per "loop zone" rather than "...
Ecnerwal's user avatar
  • 210k
2 votes

How does the sensor in a hot water circulation system inform the pump to turn off?

I presume that you are referencing a system that does not have a dedicated return line. These "newer" systems use a "sensor valve" (not mentioning brands, this is often referred to ...
Jimmy Fix-it's user avatar
  • 35.3k

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