Find your pond heater

Use pond size as a shortlist, then read the model description for its recommended volume and operating temperatures. A covered pond at 12°C is our winter planning target; supplier volume guides are not a guarantee for every installation. Contact us for help choosing a model for your pond.

Price

Heating type

Rated heat output

Wi-Fi control

Heating control

Power supply

Air discharge

Brand

Vertical inverter heating for pools and warmer koi ponds

Poolex Silverline Top heat pumps combine vertical air discharge, inverter control and built-in Wi-Fi. Compare the individual models below by heating output and electrical phase, then check the water flow and temperature settings for your installation. The published heating range starts at 15°C, so this is not the range to choose for a 12°C heating-only winter pond setting.

Read the Poolex Silverline Top buying guide and model comparison, or browse our complete air source heat pump range.

Choosing a Poolex Silverline Top heat pump

What makes Silverline Top different?

The upward air outlet provides an alternative to a heater that blows cold air forwards. This can be useful when planning a plant area beside a pool or pond, provided the space above the unit remains clear. Full inverter control adjusts compressor and fan operation to demand, while Wi-Fi provides remote access to the controls. These features help with positioning and everyday use; they do not replace correct sizing or the installation clearances.

Which Silverline Top model should you choose?

The model number is not a direct statement of heating output. Our individual listing titles show the published kW rating to make comparison easier. The Top 150 and Top 200 families include different electrical versions, so check the complete model code, including the T suffix where present. A three phase model requires the corresponding electrical supply and cannot be substituted for a single phase model on the same circuit.

Silverline Top for koi ponds

Start with the temperature you actually want to maintain. The published heating setpoint range is 15–40°C. A pond intended to remain at 12°C through winter therefore needs another suitable control range. For a warmer koi pond, the controller setting is only the first check: the available cold-weather output must also match the pond’s heat loss. Surface area, cover, insulation and exposed filters all matter. Swimming pool volume guidance must not be treated as a winter pond capacity.

Vertical airflow and installation

Leave the air inlet and the space above the fan open to outdoor air. A low roof or tight enclosure can send discharged air back into the intake and reduce performance. Plan a level base, condensate drainage and access to the service panels. Check the exact model’s water flow and connection requirements before choosing pipework or a bypass. The larger heater is only useful if the circulation system can supply the required flow.

Compare the models in this range

Open an individual model for its full technical data, current price, installation guidance and delivery information. Electrical phase is shown separately so similarly named versions can be compared correctly.

Heating output is not electrical consumption

kW can describe either the heat delivered to the water or the electricity used, so check which figure is quoted. In performance tables, A refers to air temperature and W to water temperature, in degrees Celsius. COP compares delivered heat with electrical input at a stated test condition. Compare like-for-like figures rather than using the highest advertised efficiency to predict your annual bill.

Before you order

Measure the water volume and surface area, decide on your target temperature and heating season, and note the cover and insulation. Check the available electrical supply, delivered water flow and outdoor installation space. A suitable cover can reduce the heat that must be replaced. Tell us about exposed filters, pipework and wind so that these are included in the recommendation. During frost, follow the manual’s circulation and drain-down instructions; switching an idle heater off does not remove trapped water.

More help with your heating system

Our pond heating guide explains winter sizing, covers and system choices. Use the air source heat pump filters to compare electrical supply, output, control type and budget across ranges. For circulation equipment, explore our pond pumps and check the delivered flow through the complete circuit.

Other ranges to compare

Different ranges suit different temperatures, seasons and installations. Compare the controller settings and cold-weather output as well as nominal kW before changing to an alternative.