If its a Rinai, I measured one once that was 30 watts AC standby, and
jumped a bit higher when firing. It also needed pure sine.
The customer swapped it for a regular hot water tank.
Some Bosches and old Palomas, etc. had either a piezo ignition or pilot,
but took no power.
I'm working on a system with one now that needs 12vdc at about 5 watts.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 9/28/2013 9:19 PM, frenergy wrote:
Off-grid Wrenches,
I'm working on a load sheet and am having a hard time finding
standby and while firing electrical usage for a propane-fired on
demand water heater. Do they some/all have standing pilots, glow
bars, something else? I'm guessing the standby power needs are very
low but we all know how even 10-15 watts adds up over 24 hrs when
you're off-grid.
If any body has some actual numbers rather than just pdf.specs
(though manus specs might help some), I would be most grateful.
Thanks in advance.
Bill
Feather River Solar Electric
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