Which battery

[TY PECK]

Hi Folks, 16ft Bambi owner 2005, plan to boondock 2-3 days at a time.
Will run water pump, furnace in 55 degree night outdoor temps and above, detectors, maybe some LED lights. Nothing else.

Planning on a single 80 watt solar panel.

Which of the many glass matt battery groups should I need and any particular brand? Very important to keep the furnace going for the wife.

Thank you. Ty

[Silver Hawk]

Furnace is a amp. hog - fan.
Why are you limited to only a 80 watt solar panel?
I use a 190 watt solar panel and 300 amp 6 volt AGM (x2) batteries.
This has worked out very well - same problem with wife.
With out AGM 6 volt batteries it wouldn't work.
Hate using generator! I boondock for the quiet - away from cities, etc.

[AtomicNo13]

X2 on the twin 6 volt batteries!
I personally use Rolls batteries.

[AWCHIEF]

Ditto, a pair of 6 volts, brand and construction of your choice.