Difference between revisions of "Talk:Boiler Evolution"
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--[[User:John Stumbles|John Stumbles]] 13:57, 21 February 2007 (GMT) | --[[User:John Stumbles|John Stumbles]] 13:57, 21 February 2007 (GMT) | ||
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| + | Anybody know when building regs changed obliging non-permanent pilot light designs? | ||
| + | --[[User:John Stumbles|John Stumbles]] 16:31, 21 February 2007 (GMT) | ||
Revision as of 16:31, 21 February 2007
Maybe would be nice to do as a graph showing where various developments branched off e.g. lightweight heat exchangers from cast iron, combis from heating-only etc?
--John Stumbles 13:57, 21 February 2007 (GMT)
Anybody know when building regs changed obliging non-permanent pilot light designs? --John Stumbles 16:31, 21 February 2007 (GMT)