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Electrical consumption

balance the zones with non-electric balancing valves.

Lots of marine pumps/circs. work on 12VDC

Anytime you invert, the efficiency losses are relatively huge.

Non-electric "bulb" type TRV controls, if absolutely required, require no juice at all.

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Comments

  • Glen
    Glen Member Posts: 855
    Off grid project -

    This home (open floor plan timber frame) will be a PV supplied power system, total watts not yet determined. System is a wood fired boiler, probably a Greenwood, 3500 sf radiant in roth panels. Zoning is simply four large areas. What do you suggest for the absolute minimum controls to minimize current draw?
  • carol_3
    carol_3 Member Posts: 397


    A 24V thermostat and zone valve for each zone. And a 40 VA transformer for every 5 zones.
  • jp_2
    jp_2 Member Posts: 1,935
    TRVs

    drop the zone valves and thermostats all together.

    then you have a single reset control and a pump or two i would guess with this system.

    second best would be detented zone valves if they exist?

    try to stick with DC operated equipment. no point in charging batteries, then convert to AC just to convert back to DC again. lots of loses there.
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