Anonymous wrote:Anonymous wrote:Forced air heating systems... "degrade indoor air quality because the buffer
spaces where ducts are located are often moist and have large amounts of biological activity
(crawlspaces), dust including cockroach and other allergens (attics), and vehicle exhaust or
solvent storage (garages). Thus an HVAC system may serve to increase contaminant loading
in a space and may introduce contaminants "
One study (of MANY) by University of Texas at Austin: http://www.caee.utexas.edu/prof/siegel/papers/conference/siegel_forcedair_hb_680.pdf
EEEK!![]()

Anonymous wrote:Forced air heating systems... "degrade indoor air quality because the buffer
spaces where ducts are located are often moist and have large amounts of biological activity
(crawlspaces), dust including cockroach and other allergens (attics), and vehicle exhaust or
solvent storage (garages). Thus an HVAC system may serve to increase contaminant loading
in a space and may introduce contaminants "
One study (of MANY) by University of Texas at Austin: http://www.caee.utexas.edu/prof/siegel/papers/conference/siegel_forcedair_hb_680.pdf
Anonymous wrote:Anonymous wrote:Had a lengthy discussion with my friend who grew up in Germany with water heated rads. He said they were awful , a lot of dust gets trapped in the radiators and they take up a lot of wall space.
He was impressed by my new build's forced air and thought it was nice the air came from the floor vents because the floors felt warm.
He said that the radiator air was still dry and that they would often bring in fans to distribute the heat that was trapped on the side of the rooms because unlike central HVAC with intakes the air would be stagnate.
The no fan advantage was false in his case and in fact the dust trapped behind and around the radiators would blow in the air.
Haha, what? That might just be your German friend's attempt at being humorous.
Anonymous wrote:Had a lengthy discussion with my friend who grew up in Germany with water heated rads. He said they were awful , a lot of dust gets trapped in the radiators and they take up a lot of wall space.
He was impressed by my new build's forced air and thought it was nice the air came from the floor vents because the floors felt warm.
He said that the radiator air was still dry and that they would often bring in fans to distribute the heat that was trapped on the side of the rooms because unlike central HVAC with intakes the air would be stagnate.
The no fan advantage was false in his case and in fact the dust trapped behind and around the radiators would blow in the air.
Anonymous wrote:I don't understand how radiator heat is moist, the system is closed pipes. Maybe it's because of poor insulation and wet basements in older homes?
Anonymous wrote:I don't understand how radiator heat is moist, the system is closed pipes. Maybe it's because of poor insulation and wet basements in older homes?
Anonymous wrote:LOVE radiator heat. Forced air is more expensive and not as good. Probably cheaper to install, as I can't figure out why else folks would put it in.