
$164.95
As low as $14/mo with financing at checkout · Free shipping on qualifying orders
$164.95
Calesco Waterbed Heater, 8" & 9" Deep-Fill: Solid-State 325W
$164.95
This is a 325-watt solid-state waterbed heater from Backer Heating Technologies of Sweden (Calesco), built for 8" and 9" deep-fill softside waterbed mattresses. The etched copper-foil pad spreads heat evenly across the mattress, while a precision electronic thermostat holds your water temperature within about one degree so the bed stays at the comfort level you set. It's a good fit for anyone replacing a heater on a deep-fill bed who wants quiet, steady warmth and a long-lasting, low-energy unit.
Best for 8" and 9" deep-fill softside waterbed mattresses (not for 3.5" tube beds).
Questions about fit or setup? Talk to a specialist or call (877) 474-9196.
| Brand | STERLING SLEEP SYSTEMS |
|---|---|
| Warranty | 5-year limited warranty to the original purchaser against product failure from defects in labor or material; covers product replacement only and excludes freight. Damage from improper installation or abuse is not covered. |
| Fits | 8" and 9" deep-fill softside waterbed mattresses only. Not for use with 3.5" tube beds. |
| Power | 325 watts, solid-state. |
| Certifications | Heater and control unit designed to UL 1445 standards and ETL certified for the USA and Canada; tested to CSA C22.2 No. 200; foil produced to ISO 9000:2000 standards. |
| Construction | Etched copper-foil, low-watt-density heater pad with soldered copper-to-copper power cord connections and polyester insulation; integrated watertight solid-state control unit. |
| Safety | Automatic overheat cut-off; control unit designed to resist electrical spikes up to 1500V. Unplug the element when filling or emptying the bed. The control unit generates heat and should not be left in contact with the mattress. |
| Installation | Install the pad right side up, under the safety liner, on a firm flat surface, away from cracks or gaps between deck boards. Smooth out wrinkles and keep blankets and sheets from being tucked over the pad. |
| Note | A dual-bladder (split) waterbed needs two heaters to heat both sides. |
| Availability | In stock |
| Shipping | Fast free shipping on qualifying orders |
Standard shipping — typically 1–5 business days via UPS or USPS. Free on qualifying orders.
Need it by a specific date? Call (877) 474-9196.
Returns are covered by our Return & Comfort Guarantee Policy — including a 90-Night Comfort Guarantee on mattresses.
A filled waterbed spreads its weight across the whole frame and deck, so a normal residential floor handles it fine. If you're on an upper floor or unsure, call us and we'll talk it through.
Softside beds set up much like a regular mattress; hardside beds fill inside the frame. We include setup guidance and our team walks you through fill, heat, and conditioning — we do it every week.
Yes — a heater keeps the bed at a comfortable temperature and conditioner protects the vinyl and keeps the water clear. See “Complete your system” below for the matched parts.
Softside looks and sits like a standard bed (foam rails, no exposed frame); hardside is the classic deep-fill feel in a wood frame. Read our waterbed guides or ask us which fits your room.
The heater, cover and conditioner that fit this bed. Add them now so it's ready the day it arrives — or ask our team to spec the exact parts for your model.








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