Blagdon Affinity Ice Vent 50w Pond Heater, Allows Oxygen In, Toxic Gases Out, Fish to Breathe, for Ponds up 5000 Litre

Amazon

Designed to retain an ice-free zone (vent), to support fish and aquatic life in the pond through Winter, allowing oxygen in and toxic gases to escape Unique, 50w, convection design saves energy, water is warmed and rises up through the convection chamber to keep the lifesaving vent ice-free This heater is suitable for ponds up to 5000 Litre, suitable for all Blagdon Affinity Living Feature Pools If you have a larger pond more than one ice vent heater can be used to keep your pond from completely freezing over This product comes with a 5m cable, but no plug is supplied due to safety legislation on outdoor electrical products in the UK

Cazaar

Blagdon Affinity Ice Vent Pond Heater Ponds up to 5000L The Blagdon Ice vent pond heater is specifically designed to retain an ice-free zone (vent) which supports fish and aquatic life in the pond through the coldest times of the year. Unique low wattage, convection design means the heater only requires minimal energy to function. Stops water surface from freezing Unique convection design saves energy Allows pond to breathe All ponds up to 5000 litres