Which are the primary components of residential HVAC systems? (select all that apply)

Condensing furnaces typically use this type of material for the exhaust flue:

Furnace and boiler heating capacity is typically sized in:

New homes and commercial buildings often combine forced-air systems with hydrophobic systems for more efficient heating.

Water is the only liquid that can be used in hydronic systems to deliver heat to a building

Thermostats control the temperature for both forced-air heating as well as hydronic heating systems

Relative humidity changes depending on air temperature

Which factors listed affect thermal comfort? (select all that apply)