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replace undersized radiant demand with boiler
7 year old 3000 sq ft house Seattle area- natural gas
in slab radiant on 1500sq ft 1st floor -one thermostat now(plumbed but not valved yet & wired but no thermostats for 4 zones but not set up)
2'd floor 1500 sq ft (4 rooms) stubbed for radiant baseboards and zoned for valves but not set up.
replacing undersized Tagaki demand with boiler.
want boiler to be sized for whole house (2 temps- slab and baseboard) but will do 2'd floor as additional cash allows
We really don't use the 2'd floor but want the house set up so if we sell in 7 years or so,
we can finish heat on 2'd floor or at least have it close.
In the intervening 7 years (guessing on this)
1. are we crazy to do this in 2 steps rather than bite the bullet on eventual sales price of house
2. will the oversizing of the boiler for what we need now vs what would be needed to heat the additional 1500 sq ft cost more than it's worth in boiler cost and fuel in the next 7-10 years say.
Looking initially at a Burnham ES24NI