[nycbug-talk] OT: I need a new steam boiler
nycbug at wynn.com
Fri Jan 4 18:29:34 EST 2013
In any case you will need some source or electric power to run the
thermostat. For my set up I have a gas fired boiler with a pilot light
and a small battery/inverter combo to run the thermostat.
Thermostat circuits seem to be 24 volts AC in this country. So I have
a 12 volt battery with a 100 watt inverter (small cig lighter type)
that puts 110 Volts into the transformer for the furnace when there is
a power failure. I do not have it automated, but I should at some
point do that.
I have not investigated to see if the control circuit will work with
DC. If so then one could just get a couple of 12 volt 7AH gell cells,
wire them in series and home brew a small 24V dc trickle charger to
power the whole thing all the time. This is real easy using linear
technology by picking up a transformer and 4 diodes from Radio Shack.
I hope this helps.
wynkoop at wynn.com http://prd4.wynn.com/wynkoop/pgp-keys.txt
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