andrew smith asked ... 2009 fiesta 1388 cc titainum?    |    Eric asked ... Strimmer fuel line?    |    Frank asked ... Working fine. No cold air?    |    c.m.brown asked ... Replace chuck on aeg power drill sb2e 700r?    |    tom dimmock asked ... How can i mend the lid on russell hobbs elec?    |    Click here to ask your question

Replacing flow valves on my furnace/boiler?

Do I need to shut down my boiler/furnace to switch out two flow valves? Is there a proper procedure in draining the pipes so I can cut out the old valves?

Thank you for your help..
Edm
Edm, January 2011