Insist on a load calculation to justify furnace rates; rule-of-thumb sizing can overshoot capability

https://zanderovvh089.iamarrows.com/setting-up-an-efficient-heating-system-with-the-right-size-and-type-of-furnace-1

Insist on a load calculation to justify furnace fees; rule-of-thumb sizing can overshoot potential, reducing potency and luxury.