- Warmair.com - http://www.warmair.com
Information on heating system operation, components, troubleshooting and maintenance.
- HeatingHelp.com - http://www.heatinghelp.com
Find answers to steam heating problems by posting questions for experts or reading excerpts from books about heating.
- Air Conditioning for Home Owners - http://www.accheckup.com/
Interactive manual includes basic troubleshooting and maintenance tips for do-it-yourselfers. Feedback form provided for technical questions.
- Allexperts Repair Q and A - http://www.allexperts.com/getExpert.asp?Category=696
Volunteer mechanics answer questions via e-mail. Volunteers can be evaluated based on credentials and user ratings.
- Carbon Monoxide Protocol - http://home.att.net/~cobusters1/coprotocol.htm
Guidelines to determine whether potential exists for this deadly gas to enter a house.
- Heating System Maintenance - http://muextension.missouri.edu/xplor/hesguide/housing/gh5981.htm
Tips on preparing a furnace for winter operation.
- Duct Cleaning - http://www.epa.gov/iaq/pubs/airduct.html
EPA tips on how to determine if ductwork needs cleaning. Criteria for choosing a contractor.
- Sound Home Resource Center - http://www.soundhome.com/topics/topic.shtml#energy
In-depth articles on topics related to improvement, care, and maintenance.
- Hannabery HVAC - http://www.hannabery.com
Everything from troubleshooting to maintenance and repair.
- Learn Ductwork - http://www.thesheetmetalshop.com
Illustrated tutorial on fabricating sheet metal ductwork.
- Hearth.com - http://www.hearth.com/what/specific.html
Information on gas, wood, pellet, and coal appliances. Cost comparison of the different fuels.
- Carbon Monoxide Alert - http://www.homesafe.com/coalert/
Comprehensive site includes safe/unsafe practices, effects, detector placement, and discussion.
- HVAC-Talk - http://hvac-talk.com/
Software bulletin board for HVAC contractors, home-owners, do-it-yourself enthusiasts to use for heating and air conditioning concerns.
- Aprilaire Owner's Manuals - http://www.resprod.com/default.asp
For humidifiers, air cleaners, thermostats, zone control systems and fresh air exchangers.
- BTU Calculator - http://hearth.com/calc/btucalc.html
Estimate the heating needs of a room, combination of rooms, or an entire home.
- RepairNet - http://www.repairnet.com/
Flat rate price guide for checking repair costs.
- Appliance411.com - http://appliance411.com/links/Helpful_Tips/Air_Conditioner/
List of do's and don'ts for maintenance and repair.
- Big Blu Manual - http://www.refrigtech.com/bigblumanual1.html
Tutorial illustrating step by step procedures for finding refrigerant leaks.
- Furnace Blower Repair - http://www.misterfixit.com/htrblowr.htm
Short example on replacing bearings and fan belt.
- Honeywell - http://www.honeywell.com/businesses/page6_5.html
Devices include thermostats, humidistats, air cleaners and humidifiers. Everything from manuals to troubleshooting guides to programming instructions to product support.
- HVAC Glossary - http://www.hvac-city.com/hv01002.htm
Consumer guide to the array of efficiency ratings, abbreviations and acronyms used to describe or explain the products.
- Carbon Monoxide Poisoning - http://www.epa.gov/iaq/pubs/coftsht.html
EPA site provides advice on CO detectors, poisoning symptoms and prevention.
- Gas Furnace Alert - http://www.meier-and-sons.com/
Warning about the potential danger if flue pipe is not replaced when a modern high efficiency furnace is installed. (click "alert" to get to page)
- HVAC Help for the Homeowner - http://home.att.net/~alt.hvac/owner.htm
Experienced mechanic shows how to get help from the web. Includes advice from other mechanics and numerous searches of alt.hvac where many industry experts have answered a variety of questions.
- Heat Pipes - http://www.heatpipe.com/heatpipes.htm
Fact sheet illustrates the theory and operation. Add-on device for air conditioner to improve de-humidification.
- Home Ideas - http://www.homeideas.com/category.pl?site=hi&category=hvac
Order form to request free literature on new units and related products.
- The Boiler Room - http://www.boilerroom.com/homeforum.html
Forum to post residential steam related questions.
- AC-Pal - http://www.ac-pal.com/index.html
Software allows input of data from instrument readings and gives solution to the problem. Definition and help section provides additional information about concepts and functions. Demonstration version available.
- Howstuffworks.com - http://www.howstuffworks.com/ac.htm
Article that describes air conditioning operation from window units up to large industrial applications.
- Space Conditioning Systems - http://www.msue.msu.edu/msue/imp/mod02/01500601.html
Instructions on maintenance procedures for heating systems. Includes drawings and diagrams.
- Radiant Design Institute - http://www.radiantdesigninstitute.com/
Illustrations and detailed tutorials for installation of radiant floor heating.
- Homestore.com: Heating How-To Articles - http://www.homestore.com/HomeGarden/homeimprovement/howtos/howtos/DefaultHeating.asp
Wide assortment of tips including programmable thermostats, cleaning air ducts, reducing moisture problems, and basic maintenance.
- John Mills Work Page - http://www.johnmills.net/work/workpage.html
Advice from a service manager on buying a new unit, illustrated essay on chimney liners, and a history of brand names.
- Air Duct Calculator - http://www.connel.com/freeware/airduct.shtml
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 sectional area, the circular duct diameter, and rectangular duct equivalents.
- Ontario Propane Association - http://www.propane.ca/Resources/
Liquid propane gas serviceman's handbook. Installation and inspection instructions.
- HVAC Mechanic - http://www.hvacmechanic.com
Information and support on heating, ventilation and air conditioning systems or controls for home owners and professionals. Knowledge base, recalls, forum, glossary, and events.
- MSN House and Home: Climate - http://houseandhome.msn.com/improve/climate.aspx
Overview of systems which contribute to climate within the home - insulation, air conditioners, vents, humidifiers and dehumidifiers, forced air heaters, filters, and thermostats. Illustrations, common problems, and basic repair instructions.
- RCD Mastics - http://www.rcdmastics.com/
How to locate, repair, and seal ductwork.
- Recalls - http://www.cpsc.gov/cpscpub/prerel/prerel.html
Searchable database provided by Consumer Product Safety Commission.
- National Refrigerants - http://www.refrigerants.com/
Technical support and regulatory updates; articles, faq, and news.
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