Is required to view the documents Thus if
Is required to view the documents. Thus if your house totals 2000 sq.ft.: it would be 2000 x 40 = 80,000 btu/hour to heat the house & the size boiler needed. Most companies send a salesperson, who’s not gas safe registered, round to your house before installing your boiler they’re there to drink a few cups of tea, “upsell”.