Across four cohorts the system is capturing 94.2% of available thermal reject, delivering a median 38 kBtu/h to the household, and displacing 7.1 t of annualized CO₂ per site. Three new counties enter commissioning in Q1 2027.
Worcester is cold. For the 40 households on Birch Hollow, winter meant a $280 median gas bill, two breakdowns a decade, and a water heater that ran out mid-shower. The street sits two blocks from a tier-II datacenter that was venting 1.4 MW of waste heat into the sky every hour.
We did not sell them anything. We laid pipe. Over six weeks a crew of four tapped the datacenter's rejection loop, routed insulated line under Elm Street, and dropped a 60-gallon buffer tank in each basement. The gas lines stayed as backup. Nobody has lit them in 11 months.
The install took a weekend. The gas bill went to zero the next week. Nobody at the HOA believed me until we voted to extend it to the next street.
CloudBoiler is the first partner that treated our reject loop as an asset rather than a liability. The telemetry is better than our own BMS.
I was impressed with how the field crew explained every step. Clear, honest, no upsell. We've already recommended three neighbors.
A fifteen-minute call with a thermal engineer. If your block fits the thermal, routing, and partner profile, you're on the Q1 2027 build list.
Intake is run by the same engineers who will walk your block. They will tell you — in plain language — whether CloudBoiler fits your household, when, and what it costs.
or email pilots@cloudboiler.energy · +1 888 532 0197
CloudBoiler recovers compute waste heat and routes it to households that need it. Grid-coupled, SLA-backed, fossil-free on-site. Operating in four counties across MA, NY and TX.