Best Of
Re: What's a good humidity meter?
I've been using this for years. The only accuracy tests are comparing it to the display on dehumidifiers or humidistats I work on. Its always within a percentage or 2, so for the +/- range I need, to me its DOBA. I don't need wb or dew point often. It does take some time to acclimate when you first turn it on. About 5 minutes. After that it registers fairly quickly when taking supply and return readings or something.
HVACNUT
Re: Furnace fan will not work
Can you turn the fan by hand? If the fan or motor are bad, that will happen — it will hum for a while then burn out the transformer.
Re: Near boiler piping/replacement boiler
A heat load would add some more info to the question. 1800 sq ft X 25 btu/ ft guesstimate= 45,000BTU/hr required. That is on the coldest day.
80% of the heating season the load could be in the 30,000 range. So the boiler 152,000 you have could be 3-4 maybe 5 times what you need.
While` not hydronically ideal for that boiler, the circs are not causing efficiency issues on the return, unless the system has noisy air issues?
Here is a simple buffer piping, direct to load method. Indirect on priority with its own circ.
hot_rod
Re: Adding C-wire to my system
Yes, you got cereal bowl on the wall thermostat. And, yes, use the C terminal where the Blue wire is on the board. Its definitely a 40 va transformer, unless someone changed it, so it can handle the Nest.
HVACNUT
Re: What's a good humidity meter?
Sling is probably cheaper and accurate. Humidity is always a moving target.
Re: Myers C48D53B86 jet pump- Help
I['ll bet it is an 1/8 npt if you take the brass out? A basic 1/8 radiator bleeder, ball valve, etc.
hot_rod
Re: Myers C48D53B86 jet pump- Help
How far could it have gone ?
Is the bleeder Petcock thread into the casting 1/8" pipe thread ? Maybe just put another valve on it.
109A_5
Re: Radiators make my apartment unbearable during winter
IMO, the problem here is you don't have a thermostat in YOUR apartment. The thermostat controls the level of temperature it senses. If the thermostat is cold, it's telling the system to add more heat.
If the thermostat senses too much heat, it tells the system to stop sending heat.
Thermostatic radiator valves would do what you want, but the landlord won't provide them, and you can't.
So, YOU need to be the thermostat. If the radiator valves won't close, you can cover the radiators so they emit less heat, and/or open windows to get rid of the excess heat.
Pumpguy
Re: Old copper pipe smaller than todays 1/2"
Regular domestic water plumbing is measured by it's ID and refrigeration tubing is by OD. So, someone may have used 1/2" OD in lieu of 1/2"ID especially if that person was in the refrigeration or A/C business. Try going to a refrigeration supplier and buying couplers for 1/2"OD and see if that works. 1/2" copper for domestic water has an OD of 5/8" while 1/2" refrigeration tubing has an OD of 1/2". So, for example, 5/8" refrigeration tubing is the same as 1/2" nominal domestic water tubing. I said nominal since the actual ID of domestic water tubing changes with the grade of the tubing being M, L, or K, while the OD remains the same.
Re: Old copper pipe smaller than todays 1/2"
What part of the world are you located if I may ask?
ChrisJ