Heat Hogs

Suitable for a small butcher

A 50-litre tank with an integral heat exchanger with 3kW capacity

Small butchers’ shops are ideal for the smallest of the DK heat recovery tanks as a straight replacement for the existing hot water tank that will typically be heated by a small electric element. The system would harvest heat from the refrigeration plant attached to the meat cold store. Even a small cold store which is continuously opened and closed will be sufficient to provide 3kW of heat recovery.

A 3-kW system would produce 60 litres of hot water at 50°C per hour which is plenty for the continuous washing of utensils and at the end of the day there will be 50 litres of hot water ready for the wash down. Larger tanks can be specified to store even more hot water for a larger washdown.

Assuming a 6-day operation with an average of 10 hours per day the system has the capability to save 10,000 kWh of heat energy (more if oil or gas is being used).

To put this in perspective if using electric the annual saving would be equal to the profit from making 20,000 premium sausages

Suitable for a busy butchery / small cutting plant

A 120-litre tank with integral heat exchangers with 6kW capacity

A busy butcher will have a constant demand for hot water which means a constant energy demand cost. It will usually have a small boiler providing hot water either on demand or heating a small tank ready for use. A DK heat recover system would be fitted up stream of the boiler to provide the unchanged heating system with pre heated water at 50°C. This means that either the existing boiler will have either nothing to do or operate at a lighter load. Keeping the original boiler in place will reduce installation costs and provide a backup should the refrigeration system be switched off for any reason.

A 6kW system with a 120-litre storage tank would produce 120 litres of hot water at 50°C every hour to cope with the continuous water demand and end of day clean down requirements.

Assuming a 6-day operation with an average of 10 hours per day the system has the capability to save 20,000 kWh of heat energy (more if oil or gas is being used).

Suitable for a Restaurant or Public House

A 200-litre tank with integral heat exchangers with 12kW capacity

Restaurants have a constant hot water usage which is subject to peaks during busy service periods. Hot water production using a heat recovery system is usually uniform so to accommodate peaks requires a greater storage capacity to be installed. A DK heat recover system would be fitted up stream of the boiler to provide the unchanged heating system with pre heated water at 50°C. This means that either the existing boiler will have nothing to do or operate at a lighter load. Keeping the original boiler in place will reduce installation costs and provide a backup should the refrigeration system be switched off for any reason.

A 18kW system with a 200-litre storage tank would produce 240 litres of hot water at 50°C every hour to cope with the continuous water demand and 200 litres of water ready to cope with the peak demands

Assuming a 7-day operation with an average of 12 hours per day the system will save 42,000 kWh of heat energy when using electricity for heating (more if oil or gas is being used).

Note: Savings are calculated using only 75% of the systems capability

Suitable for a Food Hall including Butchery and a busy Cafe

A 300-litre tank with integral heat exchangers with a 18kWh capacity

Food halls have a constant hot water usage, but Cafés are subject to peaks during busy service periods. Hot water production using a heat recovery system is usually uniform; to accommodate peaks requires a greater storage capacity to be fitted. A DK heat recover system would be fitted up stream of the boiler to provide the unchanged heating system with pre heated water at 50°C. This means that either the existing boiler will have nothing to do or operate at a lighter load. Keeping the original boiler in place will reduce installation costs and provide a backup should the refrigeration system be switched off for any reason.

A 36kW system with a 300-litre storage tank would produce 360 litres of hot water at 50°C every hour to cope with the continuous water demand and 300 litres of water ready to cope with the peak demands

Assuming a 7-day operation with an average of 12 hours per day the system will save 63,000 kWh of heat energy when using electricity for heating (more if oil or gas is being used).

Note: Savings are calculated using only 75% of the systems capability

Suitable for a small food manufacturer

A 500-litre tank with integral heat exchangers with 36kW capacity

Food manufacturers have a constant demand for hot water during production but with substantial peaks at product change overs and end of shift day clean downs. Hot water production using a heat recovery system is usually uniform so to accommodate peaks requires a greater storage capacity is required. A DK heat recover system would be fitted up stream of the boiler to provide the unchanged heating system with pre heated water at 50°C. This means that either the existing boiler will have nothing to do or operate at a lighter load. Keeping the original boiler in place will reduce installation costs and provide a backup should the refrigeration system be switched off for any reason.

A 36kW system with a 500-litre storage tank would produce 720 litres of hot water at 50°C every hour to cope with the continuous water demand and 500 litres of water ready to cope with the peak demands

Assuming a 5 ½ -day operation with an average of 16 hours per day the system will save 133,000 kWh of heat energy when using electricity for heating (more if oil or gas is being used).

Note: Savings are calculated using only 75% of the systems capability