Joined on September 3, 2009
Last Post on March 8, 2014
@ January 19, 2011 10:22 PM in Steam stumper...Looked at a 3 unit apt today... 1 each floor. 1 steam boiler. T-stat in the bottom unit. strange oddity is that the 1st floor apt does not get heat ... all 4 rads cold but the risers to the 2nd and 3rd are piping hot. I replaced the main vents a while back and can hear them panting. I have a varivalve in the back bathroom rad and still no change.... strange thing is that the riser to the 2nd and 3rd floor and just inches away from the 1st floor rads.. all piping is insulated. ty,kpc
@ January 18, 2011 7:53 AM in valves used in hydronic boiler systemsresidential situations a ball valve is fine. Gate valves should never be used to throttle.... that will wear them out in no time.
@ January 17, 2011 11:49 PM in PIPES KNOCKINGa number of things. Too high a water temp., too little pressure, air in the lines, improper piping or expansion noise from the pipes rubbing up along the wood....kpc
@ January 17, 2011 7:42 AM in Removing air valves in one pipe systemmay very well run into is that the steam will "pour" out into the room. This will not condence and return to the boiler. You could end up w/ adding water to the boiler where you did not have to. Also steam could very well burn an unsuspecting person.
@ January 17, 2011 7:39 AM in Buffer tank control...Trying to wrap my head around the best controlling stategy... System has two zones. 1 w/ panel rads the other w/ Raupanel. 30 gallon buffer, and a Onex combi boiler.Trying to reduce the run time of the onex . Maybe I am missing the piont of the mod/con. ty,kpc
@ January 17, 2011 7:33 AM in advicewould be... depends. If you have Finn Tube baseboard, then a Biasi /Solaia /Trio/ Pensotti 3 pass that is Low mass. If you have cast iron rads then maybe a Buderus 115. Either way a 3 pass boiler is the way to go. The installer is the key. Ask for referances and examples of their work.
@ January 16, 2011 6:56 PM in adviceMistaken. The MPO is a new design, Mfg, and a step forward in a lot of respects. I have heard nothing but GOOD reports The issues were on a V7 model. It is a good unit.... I would install it if I could readily get a hold of it. kpc
@ January 16, 2011 8:20 AM in Hydronic piping layoutmeans to have the system circulator pumping away from the extrol/diaphragm tank. This arrangement is better because it allows the system to run at a pressure that will keep air more or less in solution and not bubble out into the piping creating air locks and noise. Many systems are pipied w/ the circ on the return side of the boiler effectively pumping toward the extrol tank.
@ January 14, 2011 10:04 PM in Buffer tank control...What would be the best aquastat controller to use on a buffer tank that has a mod/con boiler driving it?
@ January 14, 2011 7:54 AM in Burnham V13A oil boilerI would stick w/ the 1.25" header. The 1.5" would be overkill. How many zones? how lond is each zone? What is the Application? That would determine your circulator size.....kpc
@ January 13, 2011 10:11 PM in Valliant (sp) Boiler in uninsulated shed?for starters. Sounds like you used fiberglass. I would do foam...spray foam would be best. You will need to bring in fresh air if you already have not. got pix? Where is this located?
@ January 12, 2011 8:56 PM in Herz TRVtaco ones they had a while back. I still have them in my garage...waiting. Maybe a closer look?
@ January 11, 2011 5:35 PM in boiler pressure rises over timeis my bet. Looks like a #30 tank. Do you have Cast iron rads? They have a lot more water content... and thermal mass. Upsize it to a #60 tank.
@ January 11, 2011 5:30 PM in Lengthening cast radiators in a hot water systemme I would just find 1 bigger radiator. Trying to "build" something it a ton of work and probably will leak.
@ January 10, 2011 8:53 PM in Gravity systemcan kick your but if you try to use conventional wisdom.... Dan has a great book "how Come" that explains a lot of the hidden tricks. Don't over pump the system.... you are trying to mimick gravity flow. Size the boiler piping by reducing by 1/2 and then the next size down. So 2" pipe Mains would only require 3/4" supply piping. If you go w/ a traditioal cast iron boiler you will need a system bypass and I would highly suggest a boiler protection control (ie Tekmar control) But then again....Why use a 82% boiler when Mod/Con is a great match ? Embassy Oxex, Triangle tube, etc.... kpc
@ January 9, 2011 7:09 PM in Need Help please!!!but all the threads are incorrect. Still need to get the spud out and connect it to the valve.
@ January 9, 2011 3:37 PM in need help despatately pleasepicture. The part that goes into the radiator is the spud.
@ January 9, 2011 3:28 PM in need help despatately pleaseget a new union and /or and valve w/ the spud on it. Generally speaking they are not uniform. they should be readily available at either a supply house or a good hardware store.
@ January 9, 2011 9:03 AM in Combi Boiler Recommendationis the place insulated? does it have enough baeboard or radiators? was a combustion test done on the unit? kpc
@ January 8, 2011 5:30 PM in Energy Spike....Still a huge electric draw. Looked at at the wiring and it was tight. breaker swapped out. Meter was still drawing crazy HUGE 2000Kw/ mo.... I am 100% sure that the problem is not excessive HW use.
It is swapped out w/ a new water heater now. Very frustrated! there is no explanation for the huge draw. Would a Bad T-Stat cause this? Hot water is not super hot.... kpc
@ January 7, 2011 5:46 PM in radiant floor with BambooA max of 80F is good w/ almost every type of hardwood. If it is prefinished it is more stable and should not have an issue.
@ January 5, 2011 9:54 PM in outdoor reset savingsthe better chance for savings.