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Old 01-10-2009, 01:26 PM   #1
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Radiator Heat


I just installed a new boiler, in two rooms I still have the old cast iron radiators and they are cooking me.

Im wondering what I should do.
I have three options that I can think of,

turn down the thermostat

turn down the settings on the boiler, its shuts the flame of at 178 now

or slow down the circulator pump, its on mediun now

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Old 01-10-2009, 02:26 PM   #2
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Radiator Heat


knock down the boiler setting 5F and let it ride till sunday AM,what happen there with the old boiler system same problem?was the stat changed either new one or location ....and how is that setting?leave the stat as it is to maint.the rest of the house.sounds like those radiators might be on there way out to match the rest of the system piping?might want to box them in with a cover and metal front............nice big beach towel will knock the heat down on them by throwing it over the whole thing.if your piping isn't in series on the water flow thru the floor tweeking the valve down is a limiter also.write down those boiler resets of the temps to get an idea of the reaction in the space.only try one adjustment then let it settle or you will make problems in the rest of the house.only comb i would try last,would be a lower boiler setting and run the pump on low speed.....just an opinion.the setting of the water going out of the boiler is how high does it need to be to make a 68F..72F...74F setting on the stat.

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Old 01-10-2009, 02:37 PM   #3
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Radiator Heat


I was thinking simalar.
the thermo is same, a programable one, the other boiler was old monkey wards model 78% efic at it best.(umpteen years ago)
new boiler is a triangle tube prestige 95% efic direct vent.
another room has 2 myson wall radiators work well, a little warm ,the other rooms have radient tubing under floor but are non op yet due to a lack of wireless thermostat ( boy those things are hard to find and can get real expensive.)
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Old 01-10-2009, 06:32 PM   #4
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Radiator Heat


with that radient not active yet your definitly over tempering the water into the spaces.......can you manually open the radient zones to put a load on the boiler.try this site for wireless.......man those prices$$$$$$$$

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Old 01-11-2009, 09:12 AM   #5
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Radiator Heat


I turned the pump speed down a notch to low and it seems to make a notiable differance. I suppose it will take a couple days to really know.
One thing I learned reading the manual is they say the outside temp sensor(which I have not installed yet) is an important part of water temp regulation.
As far as the radient I did open the valves for it wondering if the pump on the other zone would push any water thru but it didnt seem to get it very far so I closed them thinking it would rob needed pressure from the radiator zone.
Ill get that sensor out and post what happens.
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Old 01-11-2009, 04:41 PM   #6
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if the radient is in an area that the stat might be effected by(being off) that would drive the other rooms to a higher temperature

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