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KOSPEL SWP-300 combined water heater 310 l, floor-standing, 2.6 m² heat exchanger
KOSPEL SWP-300 combined water heater, floor-standing, 310 l, 2.6 m² heat exchanger
KOSPEL SWP-300 is a vertical floor-standing domestic hot water cylinder with a large-area spiral heat exchanger, specially designed for efficient operation with heat pumps and other low- or medium-temperature heating sources.
The cylinder has a capacity of 310 litres, while the spiral heat exchanger provides a large 2.6 m² surface area. The large coil enables efficient heat transfer even at relatively low heating-water temperatures, which is particularly important in air-to-water and ground-source heat pump systems.
The heat exchanger delivers 70 kW at 80/10/45 °C and 21 kW at 55/10/45 °C. Domestic hot water output reaches up to 1750 l/h and 580 l/h respectively, at a heating-water flow rate through the coil of 2.5 m³/h.
The cylinder is insulated with 67 mm PUR polyurethane foam. Standby heat loss is 59 W, while the energy efficiency class is B. The high-quality insulation helps reduce the amount of energy required to maintain the stored hot-water temperature.
The internal steel cylinder is protected against corrosion by a high-quality enamel coating and an AMW.M8.500 magnesium anode. KOSPEL's production technology includes leakage testing and enamel-coating quality control for every cylinder.
The SWP-300 includes hot- and cold-water connections, a circulation connection, temperature sensor pockets, thermometer and inspection opening. Heating-water flow and return connections for the coil are G 1", while the domestic hot-water, cold-water and circulation connections are G 3/4".
A G 1½" connection for an optional electric immersion heater is also provided. The electric heater is not included as standard. Compatible KOSPEL heaters include GRW 1.4 kW, 2.0 kW and 3.0 kW models for 230 V, as well as GRW 4.5 kW and GRW 6.0 kW for 400 V.
KOSPEL SWP-300 is suitable for detached houses and larger domestic hot water systems where a substantial hot-water reserve and a large heat exchanger surface are required for efficient operation with a heat pump.
Technical information
| General information | |
| Manufacturer | KOSPEL |
| Model | SWP-300 / SWP-300.PL |
| EAN | 5906564002359 |
| Type | Vertical floor-standing DHW cylinder with one spiral heat exchanger |
| Heat pump compatible | Yes |
| Capacity | 310 l |
| Heat exchanger and performance | |
| Heat exchanger surface area | 2.6 m² |
| Heat exchanger volume | 16.5 dm³ |
| Heat exchanger output 80/10/45 °C | 70 kW |
| Heat exchanger output 55/10/45 °C | 21 kW |
| DHW output 80/10/45 °C | 1750 l/h |
| DHW output 55/10/45 °C | 580 l/h |
| Rated cylinder pressure | 0.6 MPa / 6 bar |
| Rated coil pressure | 1.0 MPa / 10 bar |
| Rated temperature – cylinder / coil | 95 / 80 °C |
| Construction and insulation | |
| Thermal insulation | 67 mm PUR polyurethane foam |
| Insulation type | Non-removable |
| Energy efficiency class | B |
| Standby heat loss | 59 W |
| Cylinder protection | Enamel coating + magnesium anode |
| Magnesium anode | AMW.M8.500 |
| Inspection opening | Yes |
| Connections | |
| Hot water outlet | G 3/4" |
| Cold water inlet | G 3/4" |
| Heat exchanger connections | G 1" |
| Circulation connection | G 3/4" |
| Electric heater connection | G 1½" |
| Dimensions, weight and packaging | |
| Diameter | 695 mm |
| Height | 1615 mm |
| Product dimensions (W × D × H) | 695 × 695 × 1615 mm |
| Net weight without water | 118 kg |
| Package dimensions (H × W × D) | 1760 × 800 × 750 mm |
| Gross weight | 143 kg |
| Package volume | 1.06 m³ |
| Optional equipment | |
| Electric immersion heater | Not included; optional installation |
| Compatible KOSPEL heaters | GRW 1.4 / 2.0 / 3.0 kW – 230 V; GRW 4.5 / 6.0 kW – 400 V |
Heat exchanger output and DHW performance values are specified at a heating-water flow rate of 2.5 m³/h.