сам вкъщи 6 www.bg-bg.pills4massxxl.eu

A central furnace or boiler's

A central furnace or boiler's efficiency is measured by annual fuel utilization efficiency (afue) the federal trade commission requires new furnaces or boilers to display their afue so consumers can compare heating efficiencies of various models afue is a measure of how efficient the appliance is in converting the energy in its fuel.

Added: 2020-05-09 | Category: one
Comments: 0