Search: Posts Made By: gilmorrie
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Replies: 8
Views: 138
Posted By gilmorrie

Double check your calcs. 110-120 sounds too high...

Double check your calcs. 110-120 sounds too high to me. The basement sq ft doesn't count as much as above grade.
Replies: 8
Views: 138
Posted By gilmorrie

For outside design temp, use the 99% value for...

For outside design temp, use the 99% value for your location (for Pittsburgh, it's 7 deg F). For inside, use 70 deg. Tell us your sq ft of the house for a sanity check.

For the garage, use...
Replies: 2
Views: 58
Posted By gilmorrie

What is the system pressure? Photos of your...

What is the system pressure? Photos of your system would be helpful.
Replies: 4
Views: 88
Posted By gilmorrie

My solution would be to replace the pump with a...

My solution would be to replace the pump with a wet-rotor pump.
Replies: 3
Views: 158
Posted By gilmorrie

I would highly recommend that you call in a pro,...

I would highly recommend that you call in a pro, experienced with hydronic heating - whose references you've checked. If you want us to take a stab at it, we need some good photos of your system. Do...
Replies: 6
Views: 171
Posted By gilmorrie

28-30 psi is too high for system pressure. The...

28-30 psi is too high for system pressure. The safety relief valve is supposed to be set at 30 psi. 190 deg F is high - 180 would be as high as ever necessary.

I would replace the flo-check valve...
Replies: 6
Views: 171
Posted By gilmorrie

What is your system pressure and temperature? Is...

What is your system pressure and temperature? Is the lever on the flo-check valve turned fully CW? These lift-check valves deteriorate with age - yours, which appears to be a bit long in tooth, may...
Replies: 1
Views: 167
Posted By gilmorrie

It has to be Pex with an oxygen barrier. Some...

It has to be Pex with an oxygen barrier. Some Pex is rated like an oxygen barrier, but without pex-al-pex. An example is Uponor (Wirsbo) hePEX.
Replies: 6
Views: 207
Posted By gilmorrie

Your heat loss calc is clearly in error. Try...

Your heat loss calc is clearly in error. Try again, using one of the programs linked as a sticky on this forum.
Replies: 6
Views: 207
Posted By gilmorrie

Where are you located? We need to know the design...

Where are you located? We need to know the design outdoor temperature. From your info, you must have a very small house. You may not readily find a boiler that small. What is the sq ft? How is the...
Replies: 5
Views: 262
Posted By gilmorrie

T&P relief valves are used on domestic water...

T&P relief valves are used on domestic water heaters, not hot-water heating boilers - which use pressure relief valves, normally set for 30 psi.

If you can't isolate the conventional expansion...
Replies: 5
Views: 262
Posted By gilmorrie

First, turn off electric power to the boiler and...

First, turn off electric power to the boiler and isolate any components that are to be replaced and that have isolation valves. Then, isolate the city water supply to the automatic fill valve and...
Replies: 1
Views: 115
Posted By gilmorrie

Standing Pilot vs. Intermittent Pilot

My older gas-fired boiler has a standing pilot, which works fine - I only need to replace the thermocouple every several years when the pilot won't stay lighted. If, in the future, it becomes ...
Replies: 2
Views: 224
Posted By gilmorrie

I would call a person who inspects and cleans...

I would call a person who inspects and cleans chimneys. He would be able to show you what needs to be done to open the damper. Then, assuming you intend to use the fireplace, you should first get the...
Forum: Water Heaters
08-26-19, 04:39 PM
Replies: 3
Views: 467
Posted By gilmorrie

This is a conundrum. If I were physically there,...

This is a conundrum. If I were physically there, I might (or probably, might not) be able to help - but not, so far, over the internet. Best to call a local plumber whose references you've checked....
Replies: 13
Views: 544
Posted By gilmorrie

Please post the photos you took.

Please post the photos you took.
Replies: 13
Views: 544
Posted By gilmorrie

What is prompting this inspection by the local...

What is prompting this inspection by the local municipality? Where do you live? I've lived in a lot of places, and never run into such an inspection. Lacking any other information, why not just wait...
Replies: 2
Views: 430
Posted By gilmorrie

You surely have a T&P relief valve properly...

You surely have a T&P relief valve properly installed - if so, your water heater may leak, but not explode.

The noise may be caused by sediment in the tank. You should drain a couple of buckets of...
Forum: Water Heaters
08-13-19, 03:25 PM
Replies: 14
Views: 919
Posted By gilmorrie

If you don't feel comfortable relighting the...

If you don't feel comfortable relighting the pilot, call a professional service person whose references you have checked. Have him show you how to do it.

There are other maintenance items you...
Replies: 1
Views: 388
Posted By gilmorrie

If you have eliminated all other potential...

If you have eliminated all other potential sources of the leak, then the tank itself must be leaking. If so, the water heater needs to be replaced.
Replies: 5
Views: 620
Posted By gilmorrie

A 35-year-old hot-water boiler may be a long way...

A 35-year-old hot-water boiler may be a long way from its end of life. Mine is 70 years old and runs like a champ, but I have updated it with new components, like pump, valves, and controls. Boiler...
Replies: 10
Views: 813
Posted By gilmorrie

Compare the costs of alternative pipe materials....

Compare the costs of alternative pipe materials. Are you experienced in sweating copper fittings? What type of pipe is already installed in the system?
Replies: 4
Views: 541
Posted By gilmorrie

Where are you located? When you say "sealing...

Where are you located? When you say "sealing gasket," do you mean the valve disc washer, the stem packing, etc.? Why are you replacing it? Do you have isolation valves on both sides of the water...
Replies: 11
Views: 908
Posted By gilmorrie

Spott, what do you see as the pros and cons of...

Spott, what do you see as the pros and cons of running a hot-water boiler at 20 psi, vs 15 psi? I assume that at 20 psi, any air would be compressed into a smaller volume and perhaps be more likely...
Replies: 11
Views: 908
Posted By gilmorrie

If you only get heat on the first floor, there is...

If you only get heat on the first floor, there is still air blocking the system.
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