POLISH PRODUCT LPHW unit heater

FARMER

No, using pressure washers is not recommended in order not to damage the heat exchanger fins. The unit can be safely cleaned with water in the case of the variant with an IP66 rated motor (FARMER HCF IP66 and FARMER OpenAir). An appropriate distance of the water jet must be maintained to avoid damaging the heat exchanger fins.

OpenAir is a solution recommended for facilities with high dust levels (e.g. poultry houses, carpentry shops) where frequent and thorough cleaning is necessary. The wider fin spacing and the opening aluminium frame significantly facilitate this process, and the built-in diffuser makes the unit ideal for ceiling installation.

Yes, the heat exchangers in the FARMER series effectively transfer heat even with lower supply water parameters, which are characteristic of systems with heat pumps. Operation with such a source requires precise calculation of parameters. Our technical department verifies the unit selection free of charge.

When supplied with chilled water, moisture from the air condenses on the cooled heat exchanger. To prevent condensate from entering the working environment, the system must be retrofitted with drip trays available in our accessories range. The installation of a tray is possible on units installed in a wall-mounted position.

No. The unit heaters can be supplied with water or a glycol solution at the appropriate pressure. Water pressure that is too low can negatively affect the heating capacity of the unit heaters and their overall efficiency.

You should check the connection to the electrical system and ensure that the unit heater is connected to the mains according to the provided wiring diagrams.

Both FARMER HCF variants have been designed for resistance to harsh conditions, but they differ in the motor's IP rating. The IP54 version works well in facilities with standard dust levels and a low risk of contact with water. The IP66 variant provides complete protection against dust ingress and water with a flow rate of up to 100 l/min. This is a solution for facilities with strict sanitary requirements where the unit is washed regularly.

Yes — expanded polypropylene (EPP) used in the HCF casing is characterised by high resistance to moisture, ammonia vapours and mechanical impact, which translates into the long-term durability of the unit in livestock environments. The GOLD epoxy coating on the heat exchanger additionally protects against corrosion, ensuring that the unit heater efficiently carries out the heating of a piggery, cowshed or poultry house even during continuous operation in a chemically aggressive atmosphere. Detailed operating parameters and permissible concentrations of chemical substances are specified in the technical documentation.

Yes — the FARMER series is one of the most frequently chosen solutions for greenhouses and polytunnels. Rapid heating of large volumes, high heating capacity (up to 83,9 kW) and resistance to increased humidity mean that the units maintain a stable temperature in the growing space regardless of outdoor conditions. The ability to operate with chilled water during the summer period additionally helps reduce the risk of plant overheating.

The GOLD epoxy coating is a specialised anti-corrosion protection for the heat exchanger, significantly more durable than standard coatings used in general-purpose unit heaters. Resistance to ammonia vapours, acids and high humidity extends the lifespan of the unit, which directly translates into savings resulting from less frequent replacements. The maintained patency of the fins keeps the nominal heating energy consumption at a constant level throughout the entire operating period. A longer heat exchanger lifespan means real savings in the multi-year cost balance of the facility.