When hooked up to AC power source
Turn the electric AND propane on at same time
That is fastest recovery rate.....roughly 16.2 gal/hr (based on 70*F water temp)
Propane alone....roughly 10 gal/hr recovery rate
As for Hybrid Tankless
I have no recommendation......here is a Review of 5 models
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31