Softside Hardside Water Bed Heater, 240W Digital Display Smart Water Bed Heater, Safe and Durable Water Bed Heater, Sensitive control, For King, Queen, Full and Twin

It arrived just before the seller's expected delivery date range. I had to partially drain the bed in order to install it under the King Size mattress, and of course refilled the mattress. It is set to 28 C, which reads 88 F between the sheets with my infrared thermometer. It took several days to get the bed up to temperature, but I am thrilled to be sleeping in a warm bed again!

This is perhaps the most underachieving heater I have ever seen. Even after three weeks it still has not gotten my queen size waterbed fully up to the set point temperature (30*). This is with a padded mattress cover, waterbed sheets and a heavy comforter covering the bed.The other problem is that it reads out only in centigrade, and cannot be set the fahrenheit at all, so I have to convert to set and read it.

The controller does not have capability to fasten to hard side bed. But it works really good otherwise.

so far the heater is working, but it is in Celcius not Farenhiet

Works great 👍👍

Taking forever to heat the bed back up. Seems to be suck at 30C Need at least 35.

As you ask know how difficult this is to install. I drained my bed, installed and refilled my bed. Plugged it in and out didn't work. Had to order a different one and do the entire drain and refill process! DO NOT BUY!

The heater is longer than the original and the control is very nice. The only draw back ic the control is in centigrade , a chart that loosely converts to farenhight . I am just old school.Delivery was ahead of the date scheduled.