Joined on April 20, 2013
Last Post on November 19, 2013
@ November 19, 2013 10:17 PM in Any way to extract more heat from the exhaust?The exhaust flue of my condensing boiler goes through an insulated (not heated) laundry room in my garage before exits the house, the flue feels warm to the touch and has kept the room a couple of degrees warmer than the rest of the garage (the room actually doesn't need to be comfortably warm, I just need to keep the pipes from freezing during the coldest nights here in NY). I know this has already been done by the condensing boiler but can more heat be left in that room before existing? By the way I was inspired by noticing the fins on the baseboard heater the other day. lol!
@ October 28, 2013 9:31 AM in outdoor reset and thermostat setbackI spent last Sunday doing air seals on windows, floors and electrical boxes, and the room felt a lot better now.
Any thoughts on my first question?
@ October 27, 2013 11:08 PM in outdoor reset and thermostat setbackBoth the boiler (shift of the heating curve) and thermostat are set back to the same temp.
@ October 26, 2013 9:03 PM in outdoor reset and thermostat setbackI am not sure if this info can be found in the boiler display option, how is it found normally?
@ October 26, 2013 8:30 PM in outdoor reset and thermostat setbackHow do I find out the delta T?
@ October 26, 2013 7:14 PM in outdoor reset and thermostat setbackI have a Viessmann 200 that uses outdoor reset to modulate the boiler, usually there is nobody at home 13-14 hours a day for six days a week. Thermostats are programmed to 68 when no one is at home, then 71 just before I come home at night. I understand that a bigger setback often goes against the outdoor reset, but for 13-14 hours away time would a bigger setback be justified in saving fuel or should I just leave it the way it is now?
My second question is regarding the heating curve of this boiler. My bedroom is a separate zone and I set the night time temp to 68 and 71 in the morning, in reality the room temperature struggles to reach 70 (sometimes only reaches 69) after 90 minutes of preheating. I could solve it by either increasing the "slope" or "shift" on the heating curve, but I want to know which one should be adjusted first.
@ July 6, 2013 1:09 PM in Viessmann Vitodens 100 vs 200?If I want to put a 200 in my house, do you think it's worth waiting for the new 200 in terms of both price and functionality?
@ July 6, 2013 12:16 PM in Viessmann Vitodens 100 vs 200?http://www.viessmann-us.com/en/Residential/Products/gas/Vitodens_200_B2HA.html
That's the new 200 you talked about right?
@ July 4, 2013 12:23 AM in Viessmann Vitodens 100 vs 200?Is that the one with a built-in 26 gal indirect?
@ July 2, 2013 2:11 PM in Viessmann Vitodens 100 vs 200?The boiler will run on LP. I don't know how it compares to NG in terms of gas quality, but do you think the Lamda Pro can take advantage of LP?
@ July 2, 2013 2:04 PM in Viessmann Vitodens 100 vs 200?My house has 3-zone baseboard heating. When you said "2 temps", do you mean one temperature of hot water for one zone and a different temperature for another zone?
@ July 2, 2013 9:54 AM in Viessmann Vitodens 100 vs 200?Could someone tell me in detail what's the difference between the 100 and 200? The price difference between the two is around $1k-2k. Both have ~95% efficiency, but does that assume the 100 can achieve that efficiency with a stable gas quality while the 200 can achieve that even when the gas quality fluctuates because of the Lamda pro?
I am wondering if it's worth paying more for the 200. Thanks!
@ May 19, 2013 9:23 PM in Longest lasting indirectsNot to jack the thread but which indirect has the lowest standby loss?
@ May 6, 2013 4:50 PM in What's the proper order for oil to gas conversion?Eventually I will get a contractor to calculate the loss. As for now, pray that they will approve my mortgage.
@ May 6, 2013 3:46 PM in What's the proper order for oil to gas conversion?I want a Vitodens 200 with a new indirect tank. As for propane, I am going to find out later. Right now I just doing some homework while waiting for the mortgage approval.
@ May 6, 2013 9:34 AM in Solar Thermal is DeadMost ST systems are for producing DHW, what system did you use to produce heating as well?
@ May 6, 2013 9:29 AM in What's the proper order for oil to gas conversion?is going.
@ May 5, 2013 9:55 PM in What's the proper order for oil to gas conversion?1. Renting the LP tanks
2. I think so because the new boiler will be installed at the exact corner of the room where the current boiler sits.
3. Yes I will let the contractor do it.
From what you said, it looks like the propane tanks should be ordered after the boiler is installed.
@ May 5, 2013 8:54 PM in Solar Thermal is DeadUp here in New York, average temperature during the day drops below 40F from December to March, does it mean Solar Thermal will be completely useless during those months to produce DHW?
According to this video: http://www.youtube.com/watch?v=aB8disMi3A8
With outside temperature of 30F, ST produced 17,413 BUT in one day, given the current rate of LP at $2/gal and 91,333BTU/gal (95% efficient gas boiler), that's equivalent to about 40 cents worth of heat in a day!
@ May 5, 2013 8:47 PM in What's the proper order for oil to gas conversion?I called a number of propane providers in my area and picked the one with the best rate. And for gas boiler, I want a Viessmann, so that explained why I need two contractors to do the job.
As for the age of the current boiler, I am not too sure except the wall on the fire box has cracked.
@ May 5, 2013 7:57 PM in What's the proper order for oil to gas conversion?I have yet to check if the propane provider can also excavate the oil tank. That's what you meant right?
@ May 5, 2013 7:55 PM in What's the proper order for oil to gas conversion?There obviously has to be some kind of gas line to connect from the propane tank to inside the house, who's responsible for this part? The propane company or the boiler contractor?