Best Of
Re: Radiators make my apartment unbearable during winter
The first part, of this last post, might be somewhat inaccurate. Thermostat only knows the temperature of its particular location. For example, if there are 10 rooms and the thermostat is in room number four, it only knows the temperature of room number four. Or in your case, if the thermostat is in the hallway, it only knows the temperature in the hallway and only reacts based on that temperature. Covering your particular radiators would have zero effect on the thermostat.
Re: SuperStor SS-40 Aquastat Immersion Well LEAKING
If it's just the threads, drain system, back out well, re-tape, re-install (which may or may not be possible with your tank).
Re: Vent placement in home 2-pipe steam heat system
Didn't realiuse that.
However… may I humbly point out that steam systems don't know anything about the gauge pressure? Or vacuum? All they know is the pressure differential. So, to take the above comments on the Empire State Building as an example, lets' suppose that they have a steam feed pressure of 2 psi GAUGE and are operating at 10 inches vacuum. Now 10 inches vacuum is almost exactly - 5 psi GAIGE so that the building is operating on a pressure differential of 7 psi. It will in fact — except for temperature of the radiation — operate in exactly the same way with a boiler pressure of 7 psi GAUGE and open vents or, for that matter if you could get there, - 5 psi GAUGE at the boiler (10 inches of vacuum at the boiler) and 20 inches of vacuum on the returns…
Bottom line. If you really want to understand what is going on in a steam system, always work in absolute pressure and differential pressure. Gauge pressure and inches vacuum with trip you every time.
Re: Replacing 17 year old oil fired boiler/need help
what does effect efficiency is an over sized boiler!
An 87.% boiler could run in the 70% range if it is too large and short cycles
Knowing the amount of fin tube is useful, but a heat load calculation gives you the best answer
hot_rod
Re: Replacing 17 year old oil fired boiler/need help
Has either of these folks done the basics? Step one. determine the actual heating demand of the structure. How many BTUh do you actually need in the coldest weather. Step two: measure the size of the radiators or baseboards in the house.
Step one will give you the size of boiler, in terms of BTUh, you actually need. It may not be as much as you think. Or as much as you have…
Step two will tell you what temperature the boiler needs to run at.
Until those two steps are done there's no point in trying to determine what boiler you might find useful…
Re: Water Heater cycle
Reseating the connector solved everything. I'm inclined to leave it alone for now. We'll see..
hunter29
Re: Radiant Floor Heating System – Is a 10°F Single Space - Same Zone Temperature Difference Acceptable?
I really think the expert you need to talk to is a lawyer.
The fact that the builder and installer are acting this way makes me think they know there is something fundamentally wrong. If there were an easy fix they would have done it and moved on.
If the design or installation is fundamentally flawed, it could be that the only solution is to jackhammer out what's there and do it over. Depending on what the finishes are, that could be tens of thousands or even hundreds of thousands of dollars of work.
Once you start trying to fix it, you own the problem. I'll pass on some advice a lawyer once gave me. If you find yourself in a situation where it's looking like you're heading to litigation, think forward to the day when the trial is ending and both sides' lawyers are offering their summations, what do you want the facts to be? Because now is the time you can control what those facts are going to be. You want the jury to be hearing that you gave the contractors every opportunity to fix it, they stonewalled and only when you threatened to sue did they even try, and then they failed. You were the reasonable one, they were the unreasonable ones and the incompetent ones.
What you definitely don't want the jury hearing is that you went on the internet and did some research and changed a bunch of things and then the system didn't work.
Re: Mini Split Location
Don't put a 24000 in under any circumstances. You should be able to do 600 sq ft/ton12,000btu. What temperature are you expecting? If the 14,000 won't do it something is wrong unless you have no insulation.
Cathedral ceiling has little effect on the load as the space above your head stays unconditioned when on cooling. You really don't have a good spot to do this with one head. I would use 2 6000 btu or a 6 & an 8 if available. 2 tons for 600 square feet is crazy
