Check out these sites, you may find the service manual for the appliance you are working on. If you would like to see others on here, let me know

 Avalon

 http://www.avalonstoves.com/dept.asp

Blaze King Industries

http://www.blazeking.com/productmanuals.htm

Breckwell Hearth Products

http://www.quadrafire.com/customerCare/installManuals/index.asp

CFM

http://vermontcastings.com/content/support/manuals.cfm

Cheap Charlie

http://www.dansons.com/dansons-manuals.htm

Enviro Hearth Products

http://www.envirofire.biz/help/manuals.html

FMI/Desa

http://www.desatech.com/manuals.cgi

Harman Stove Company

http://www.harmanstoves.com/support.asp

HearthStone

http://www.hearthstonestoves.com/wood_stoves/

Heartland Appliances

http://www.heartlandapp.com/Manuals/

Heat & Glo

http://www.heatnglo.com/customerCare/installManuals/index.asp

Jotul

http://www.jotul.us/Content/Catalogues____2720.aspx

Lennox Hearth Products

http://www.lennoxhearthproducts.com/products/list.asp?mcatid=1

Napoleon Fireplaces

http://www.napoleonfireplaces.com/Webshare/installation_manuals/installations.html

Pacific Energy Fireplace Products

http://www.pacificenergy.net/

Regency Fireplace Products

http://www.regency-fire.com/Manuals/

RSF Fireplaces

http://www.icc-rsf.com/en/fireplaces/accueil_foyer.asp

Selkirk Canada Corporation

http://www.selkirkcanada.com/products/maxfireplaces/maxhe.shtml?xid=x2

http://www.selkirkcanada.com/products/maxfireplaces/documents/640ZC40InstructionsE.pdf

Quadra Fire

http://www.quadrafire.com/customerCare/installManuals/index.asp