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  1. HVAC
    My wife and I are thinking about buying a funky old house where we live, in southern Ontario, and trying to prioritize upgrades. There's a lot of knob and tube to replace -- top priority -- and some old iron plumbing stacks that will probably be second tier. Third tier gives us lots of...
  2. Plumbing
    I have a 140L Copperflow Electric Heat Exchange hot water system, model 2895. It is dated 02/2004. In the last few weeks the 'Overflow' has gradually increased its leaking rate, to near a constant flow. (There is a mains tap before the HPNR valve and HWS so currently I am just turning this...
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