Sauneco
Ignis V45 External Hot Tub Heater 45kW Aluminium
Ignis V45 External Hot Tub Heater 45kW Aluminium
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Heat hot tubs up to 220cm with the Ignis-V45, a genuine 45kW external hot tub heater built from seawater-resistant marine aluminium. Using thermosiphon circulation — the natural movement of rising hot water — it moves heat between the stove and your tub with no pump or electricity required, giving you an efficient, low-maintenance way to heat your hot tub outdoors.
- 45kW power output, suitable for hot tubs up to 220cm
- No pump or electricity needed — thermosiphon circulation
- Marine-grade aluminium — up to 30% more efficient than stainless steel
- 3mm-thick construction — twice the thickness of standard stainless steel furnaces
- High-quality MIG-welded seams, individually tested for impermeability
- Model: Ignis-V45
- Type: Log-burning, external
- Material: Marine-grade aluminium
- Dimensions: 460mm (W) x 640mm (H) x 600mm (L)
- Weight: 50kg
- Chimney: 2000mm stainless steel, approx. 150mm diameter (2-part)
- Connection Tube Diameter: 50mm
- Seawater-resistant aluminium hot tub heater
- 2m stainless steel chimney (2-part)
- Ash grill (235 x 530mm) and glass door
- Drain plug for the external heater
- 2x 50mm aluminium connection pipes
- 2x rubber connection hoses (200mm) and 4x pipe clamps
Never start heating before the hot tub is filled with water, and the connecting pipes must be submerged before lighting. In freezing conditions, drain the stove after bathing to prevent damage from frozen water. Chlorine is not recommended with aluminium heaters — check other chemicals are safe for marine aluminium.
Genuine Sauneco aluminium heaters hold their shape far longer than thin stainless steel alternatives, with roughly 15x better thermal conductivity for superior heating efficiency. Every unit is MIG-welded and pressure-tested for reliability — backed by our quality guarantee.