12VoltInstalls
life passes by too quickly to not live in freedom
I am going to put my ~2kW of panels online at some point. I know most sunny days in winter I have been fully charged by 9-10AM with only 800W split direction array.
With the cost of propane I have explored a couple of options to shave propane heat use this winter. A promising option mathematically (when calculated for BTUs) was to heat water and circulate it to 48” of hydronic baseboard. I could theoretically “save” $40/month for four months at current propane cost with full sun every day. Not only do I know THAT won’t happen, it would require about $300 of equipment. A good idea but no immediate savings this year.
I have an electric 120VAC fan/heater with a 300W setting, and this relay which could either be triggered by the accessory output on the Epever SCC or with a separate micro programmable charge controller board I have on hand.
The idea has merit as I can set it to engage once LiFePo’s hit 13.4V and disconnect if it starts drawing from the batteries. It’s not much heat, but I’m wildhat guessing on sunny days the excess production could potentially make 7k or as much as 10k-BTUs over the day (although literal math suggests 25k BTUs I’m not optimistic on that).
That’s not much but I have everything needed on hand and modestly I think that could save $15/month for 4-6 months, so without getting silly that’s like $50 or $60 over the winter.
It’s free and I don’t see any problems with this but that I’d throw it out here for whatever crosses other’s minds.
Please commence slinging mud!
Thanks
With the cost of propane I have explored a couple of options to shave propane heat use this winter. A promising option mathematically (when calculated for BTUs) was to heat water and circulate it to 48” of hydronic baseboard. I could theoretically “save” $40/month for four months at current propane cost with full sun every day. Not only do I know THAT won’t happen, it would require about $300 of equipment. A good idea but no immediate savings this year.
I have an electric 120VAC fan/heater with a 300W setting, and this relay which could either be triggered by the accessory output on the Epever SCC or with a separate micro programmable charge controller board I have on hand.
The idea has merit as I can set it to engage once LiFePo’s hit 13.4V and disconnect if it starts drawing from the batteries. It’s not much heat, but I’m wildhat guessing on sunny days the excess production could potentially make 7k or as much as 10k-BTUs over the day (although literal math suggests 25k BTUs I’m not optimistic on that).
That’s not much but I have everything needed on hand and modestly I think that could save $15/month for 4-6 months, so without getting silly that’s like $50 or $60 over the winter.
It’s free and I don’t see any problems with this but that I’d throw it out here for whatever crosses other’s minds.
Please commence slinging mud!
Thanks
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