Humidifiers and Dehumidifiers - Humidifying second story
Doityourself.com community forum was created to provide answers to all questions related to home improvement and home repair. Doityourself community can help you find information about how-to topics on small fixes to large remodeling projects. With comprehensive how-to content and expertly moderated community forums DoItYourself.com makes it easy to tackle even the most complex home improvement projects.View Full Version : Humidifying second story
LarryDK
02-03-05, 10:53 AM
I'm trying to spec central air humidifiers for a large volume house. The main floor has volume of about 50,000 cubic ft (4200 sq ft footprint with 10 foot ceilings and a 2 story great room) and is serviced by 3 HVAC units located in the basement. The second story has volume of about 25,000 cubic ft. serviced by 2 HVAC units located in the attic.
One contractor suggested 2 Honeywell 18 GPD powered flow through units and 1 Honeywell 12 GPD by-pass flow through unit all installed on the 3 main floor HVAC units that are located in the basement. And further recommended no humidifiers be installed on the units in the attic - due to lack of water supply and risk of freezing (house is in Atlanta).
I questioned how the humidifiers from the main floor units would be effective supplying humidity to the second level rooms - especially since they are bedrooms and the doors are shut during the night. (two of the upstair intake vents are located in the open air part of the two story great room on the main floor - so some main floor air would feed them)
1. Does the solution suggested seem like it has a reasonable chance of adequately regulating humidy in the 35%-45% range to the upstairs bedrooms?
2. Will it be difficult/impossible to get the right humidity upstairs without going over-board on the main floor?
3. Any suggestions?
Great site - Thanks.
One contractor suggested 2 Honeywell 18 GPD powered flow through units and 1 Honeywell 12 GPD by-pass flow through unit all installed on the 3 main floor HVAC units that are located in the basement. And further recommended no humidifiers be installed on the units in the attic - due to lack of water supply and risk of freezing (house is in Atlanta).
I questioned how the humidifiers from the main floor units would be effective supplying humidity to the second level rooms - especially since they are bedrooms and the doors are shut during the night. (two of the upstair intake vents are located in the open air part of the two story great room on the main floor - so some main floor air would feed them)
1. Does the solution suggested seem like it has a reasonable chance of adequately regulating humidy in the 35%-45% range to the upstairs bedrooms?
2. Will it be difficult/impossible to get the right humidity upstairs without going over-board on the main floor?
3. Any suggestions?
Great site - Thanks.