what are the steps to strengthen pier and beam (sometimes called post and beam) foundation?
i will be installing a 3-5 ton Rocket heated cob bench mass heater in a rambler home in the living room over 8' length of floor space that has no beams beneath it.
i was told "If you have a suspended floor, the extra weight will probably need additional structural support so your floor doesn’t sag."
my research suggests that to reinforce beneath this heater, we would add 1 or 2 6' 4x4 beams going N to S beneath the joists (which go E to W. these would be nailed into posts nailed into pier blocks which would support the beam which would support joists.
how do i know where the spot i need to reinforce is when i'm in the crawl space?
how much weight can floor w/crawl space beneath, support ? the rocket heated cob bench mass heater shouldn't be more than 135 lbs/sf. i asked the local code officials what weight the floor itself is rated for but they didn't give me a clear answer .