Question: My furnace is inefficient and the water heater is old, too. I might install a new combination hot water-space heating unit to replace both. Are they efficient and will there be enough ...

There are two basic types of combination systems: integral and modular. An integral unit heats both the hot water and room air in one cabinet which is slightly larger than the typical gas furnace.

I might install a new combination hot water/space heating unit to replace both. Are they efficient, and will ... This requires a smaller built-in hot water tank for less standby losses.

Dear Jim: My furnace is inefficient and the water heater is old too. I might install a new combination hot water /space heating unit to replace both. Are they efficient, and will there be enough ...

Dear Jim: My furnace is inefficient and the water heater is old too. I might install a new combination hot water/space heating unit to replace both. Are they efficient and ...

LAS VEGAS — Learn about the HeatMaster TC combination high efficiency boiler and domestic water heater which utilizes Triangle Tube’s exclusive tank-in-tank technology along with their Firetube heat ...

Roombas have small bin areas to begin with, though, so that works out to a 210 mL water tank and 360 mL dust bin. The vacuum part seems to be a bog-standard Roomba, complete with a charging base ...