[combat1]

Anybody know which is the most effective insulation option for a baffled water tank?
Currently have 50mm polystyrene panels, wondering if this is better than the bubbled foil sheet?
Thanks

[windowswashed]

Anybody know which is the most effective insulation option for a baffled water tank?
Currently have 50mm polystyrene panels, wondering if this is better than the bubbled foil sheet?
Thanks

Bubbled foil is merely a vapour barrier to isolate metal panelling in campervans. Best insulation is rock wool followed by polystyrene panels, then cork

[combat1]

Thanks for the info. Appreciated.
Looks like I’m on the right track.
Don’t lose very much over the day.