In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
New boiler, Insufficent heat
I have a large house built in 1995 with radiant heat system. Because the master bedroom getting cold we called a contractor and changed new boiler Weil -Mclain Ultra series 3 with new uponor system. Based on their calculation, master bedroom need 13100 total room load. great room need 30660 total room load. output temperature set 120. return around 100. Unfortunately, Master bedroom is still very cold. When the outside temperature dropped to 20s, the bedroom temperature dropped to 50s. I have to live in the guest bedroom this winter. The contractor came back changed master bedroom pump to TACO variable speed delta T and purged water inside tubing. But it didn't help. When I feel the MB tubing temperature output and return, they r nice and warm like other rooms. but the floors on master bedroom seems not warm... The contactor told me I should demolish the basement ceiling and install proper insulation under master bedroom which was not done initially. because of the heat loss, the temperature doesn't go up. It seems not making sense to me because other part of the house was in normal temperature esp great room much larger. they were all not proper insulated at the time of building of the house. The only problem is the master bed room. The ceiling of basement which is right under the MB is normal temperature and the basement temperature is the same as thermostat settings.... That part of basement was finished , decorated.... Before I spend another 8k to demolish the basement ceiling to install insulations. ( I am sure there are additional costs to refinish basement ). I'd like to ask experts here what else could be the problems that mb doesn't generate enough heat.
Please help, many thanks