What are the differences between a direct vent, vented and unvented gas heater?
A. Vented heaters vent fumes outside. Direct vent heaters cost more but use outside air for combustion. They also normally mount on a wall – this makes them easier and less expensive to install. Unvented heaters shut down if oxygen gets low. This is great for safety but not too good for keeping you warm. Unvented heaters less than 10,000 BTUs are approved for sleeping rooms, less than 5,000 BTUs for bathrooms. Larger sizes are not approved or recommended for sleeping rooms. Q. We would like information on Radiant heat under tile floors…have no prior experience… A. The first thing is to do the heat loss calculations based on insulation, windows, ambient temperature, etc. Even before that though, the first decision is if you want a radiant heat contractor to do the work, an independent plumber, or do it yourself. We could help if you choose of the last two, not if the first.
