Insulating an inflatable hot tub

[chalkywhite]

Hi all, can't find a thread for "insulation", so here goes.....

My family would like to erect our Bestway Monaco semi-rigid "hot" tub, given the great daytime weather right now.

My concern is that overnight the temp drops to 10 or lower, so the heater might be going all night, like a kettle.

Can anyone recommend a viable insulating solution other than running a length of loft-insulation around the tub please?

Thanks, Tony

 

[motorbiking]

What is the volume of water ?
By the time you account for the life of the hot-tub and the cost of heating and insulating you might not break even.

Putting a lid on it will make a difference to heat loss
https://www.toolstation.com/ybs-thermaquilt-multi-layer-insulation/p57266

Another option is to build a ply surround and fill with insulation beads.

 

[bernardgreen]

Fit a time switch to turn the heater OFF over night and "chill out" in the morning dip

 

[motorbiking]

Used to have an 8m x 4m pool and it was chemicals that cost the money, not heating it.

 

[chalkywhite]

Thanks guys, good point about life of tub. We've had it four years, and being portable must mean a fairly short lifespan.
Its roughly 700 litres with thr fairly shallow depth for young kids.
We do sit it on foam camping rolls, but walls and lid are inflated cavities only.

 

[foxhole]

It’s inflatable the air in it insulates it.
Temp drops overnight , I run mine a couple of hours in the morning to get temp back (have rigid variety).The less water it holds the quicker it looses temp .
Do you have insulated top for it.?

 

[chalkywhite]

Hi Foxhole, it seems my physics is weak. Had no idea a simple air gap could offer any form of insulating property, or that a lower volume of water holds heat less efficiently.

My take was less water = less to heat back up.

The only lid I have is an inflatable disc and a canvas cover.

It's one of these

 

[foxhole]

You will loose a lot of heat Thru base as it seems to sit on the floor while rigid models are suspended above the ground in a frame .

 

[motorbiking]

Approx £1.20 per day to keep toasty