AC-Pal Save
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.
http://www.ac-pal.com/index.html   

Air Conditioning Information and Diagnosis Save
Diagnostics chart for troubleshooting. Tips on air filters, refrigerant charging, thermostats, and operation.
http://www.longviewweb.com/index.htm   

Air Conditioning for Home Owners Save
Interactive manual includes basic troubleshooting and maintenance tips for do-it-yourselfers. Feedback form provided for technical questions.
http://www.accheckup.com/   

Allexperts Repair Q and A Save
Volunteer mechanics answer questions via e-mail. Volunteers can be evaluated based on credentials and user ratings.
http://www.allexperts.com/browse.cgi?...   

Appliance411.com Save
List of do's and don'ts for maintenance and repair.
http://appliance411.com/links/Helpful...   

BTU Calculator Save
Estimate the heating needs of a room, combination of rooms, or an entire home.
http://hearth.com/calc/btucalc.html   

Big Blu Manual Save
Tutorial illustrating step by step procedures for finding refrigerant leaks.
http://www.refrigtech.com/bigblumanua...   

Brazing, Soldering and Welding Save
Tutorial illustrating step by step procedures.
http://www.jwharris.com/home/   

Buried Tanks - Home Heating Oil Save
Legal, environmental and technical information.
http://www.inspect-ny.com/oiltanks/ta...   

Carbon Monoxide Alert Save
Comprehensive site includes safe/unsafe practices, effects, detector placement, and discussion.
http://www.homesafe.com/coalert/   

Carbon Monoxide Poisoning Save
EPA site provides advice on CO detectors, poisoning symptoms and prevention.
http://www.epa.gov/iaq/pubs/coftsht.html   

Carbon Monoxide Protocol Save
Guidelines to determine whether potential exists for this deadly gas to enter a house.
http://home.att.net/~cobusters1/copro...   

Duct Cleaning Save
EPA tips on how to determine if ductwork needs cleaning. Criteria for choosing a contractor.
http://www.epa.gov/iaq/pubs/airduct.html   

Furnace Blower Repair Save
Short example on replacing bearings and fan belt.
http://www.misterfixit.com/htrblowr.htm   

HVAC Glossary Save
Consumer guide to the array of efficiency ratings, abbreviations and acronyms used to describe or explain the products.
http://www.hvac-city.com/hv01002.htm   

HVAC Mechanic Save
Information and support on heating, ventilation and air conditioning systems or controls for home owners and professionals. Knowledge base, recalls, forum, glossary, and events.
http://www.hvacmechanic.com   

HVAC Stories at Old House Web Save
Advice geared toward historic or older homes.
http://www.oldhouseweb.com/stories/Ho...   

HVAC-Talk Save
Software bulletin board for HVAC contractors, home-owners, do-it-yourself enthusiasts to use for heating and air conditioning concerns.
http://hvac-talk.com/   

Hannabery HVAC Save
Everything from troubleshooting to maintenance and repair.
http://www.hannabery.com   

Hearth.com Save
Information on gas, wood, pellet, and coal appliances. Cost comparison of the different fuels.
http://www.hearth.com/what/specific.html   

Heat Pipes Save
Fact sheet illustrates the theory and operation. Add-on device for air conditioner to improve de-humidification.
http://www.heatpipe.com/heatpipes.htm   

Heating System Maintenance Save
Tips on preparing a furnace for winter operation.
http://muextension.missouri.edu/xplor...   

HeatingHelp.com Save
Find answers to steam heating problems by posting questions for experts or reading excerpts from books about heating.
http://www.heatinghelp.com   

Home Ideas Save
Order form to request free literature on new units and related products.
http://www.homeideas.com/category.pl?...   

Honeywell Save
Devices include thermostats, humidistats, air cleaners and humidifiers. Everything from manuals to troubleshooting guides to programming instructions to product support.
http://www.honeywell.com/businesses/p...   

Howstuffworks.com Save
Article that describes air conditioning operation from window units up to large industrial applications.
http://www.howstuffworks.com/ac.htm   

John Mills Work Page Save
Advice from a service manager on buying a new unit, illustrated essay on chimney liners, and a history of brand names.
http://www.johnmills.net/work/workpag...   

Learn Ductwork Save
Illustrated tutorial on fabricating sheet metal ductwork.
http://www.thesheetmetalshop.com   

National Refrigerants Save
Technical support and regulatory updates; articles, faq, and news.
http://www.refrigerants.com/   

Ontario Propane Association Save
Liquid propane gas serviceman's handbook. Installation and inspection instructions.
http://www.propane.ca/Resources/   

RCD Mastics Save
How to locate, repair, and seal ductwork.
http://www.rcdmastics.com/   

Recalls Save
Searchable database provided by Consumer Product Safety Commission.
http://www.cpsc.gov/cpscpub/prerel/pr...   

RepairNet Save
Flat rate price guide for checking repair costs.
http://www.repairnet.com/   

Sound Home Resource Center Save
In-depth articles on topics related to improvement, care, and maintenance.
http://www.soundhome.com/topics/topic...   

Space Conditioning Systems Save
Instructions on maintenance procedures for heating systems. Includes drawings and diagrams.
http://www.msue.msu.edu/msue/imp/mod0...   

The Boiler Room Save
Forum to post residential steam related questions.
http://www.boilerroom.com/homeforum.html   

Warmair.com Save
Information on heating system operation, components, troubleshooting and maintenance.
http://www.warmair.com   

Forum - Usenet alt.home.repair

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