Climate Control

Air Duct Calculator

connel.com

Input a desired flow rate in CFM, a limiting velocity in FPM, air temperature in degrees F, the length of the duct, and the duct material. The program calculates the duct cross sec…

259 visits Nov 28, 2025 Details

Buried Tanks - Home Heating Oil

inspect-ny.com

Legal, environmental and technical information.

431 visits Sep 25, 2025 Details

Carbon Monoxide Alert

homesafe.com

Comprehensive site includes safe/unsafe practices, effects, detector placement, and discussion.

258 visits Jun 18, 2024 Details

Furnace Blower Repair

misterfixit.com

Short example on replacing bearings and fan belt.

73 visits Dec 11, 2024 Details

Hannabery HVAC

hannabery.com

Everything from troubleshooting to maintenance and repair.

375 visits Feb 16, 2025 Details

Hearth.com

hearth.com

Information on gas, wood, pellet, and coal appliances. Cost comparison of the different fuels.

413 visits Sep 23, 2024 Details

Heat Pipes

heatpipe.com

Fact sheet illustrates the theory and operation. Add-on device for air conditioner to improve de-humidification.

326 visits Jan 5, 2025 Details

HeatingHelp.com

heatinghelp.com

Find answers to steam heating problems by posting questions for experts or reading excerpts from books about heating.

372 visits Mar 6, 2026 Details

Honeywell

honeywell.com

Devices include thermostats, humidistats, air cleaners and humidifiers. Everything from manuals to troubleshooting guides to programming instructions to product support.

12 visits Feb 23, 2025 Details