Hidden agenda

glanz p.h.c.

Thanks for all the info guys. The house that I was wanting to figure the efficiency on is a solid concrete house with a bedford stone exterior. We clocked the meter at about 200,000 btu's. I sat down and figured a heatloss on the house at 110,000 btu's. This house is approx: 3200 sq.ft, the whole house is ceiling radiant 3/8" tubing. My only problem is whether or not my load calc is right, I can't determine how much existing radiantion I have. Also, the existing system is zoned by 3- b&G pumps, do you thing that the supplied taco on the series 2 burnham will suffice. Or do you think I should go back with one b&g pump and three z-valves. Appreciate all your knowledge.