Our Services

Yes. Heat pumps can be combined with solar thermal systems to provide domestic hot water and, depending on the design, support space heating. Solar collectors capture thermal energy while the heat pump supplies additional heating when needed.

A suitable storage cylinder, hydraulic arrangement and compatible controls are important for effective operation.

A reversible heat pump can provide both heating and cooling by changing the direction of heat transfer. In cooling mode, it removes heat from indoor spaces and releases it outside.

Cooling requires compatible indoor equipment, such as fan coils, and appropriate condensation control. Not every heating-only installation can be used for cooling.

During cold and humid weather, frost can form on the outdoor coil of an air-source heat pump. Defrosting by circuit reversal temporarily reverses the refrigerant cycle to warm the outdoor coil and melt the frost.

Once defrosting is complete, the heat pump returns to its normal heating operation.

A properly installed and maintained solar thermal system can often operate for around 20 years or longer. Actual lifespan depends on equipment quality, operating conditions and maintenance.

Components such as pumps, controls and heat-transfer fluid may require servicing or replacement during the system's life.

Instantaneous water heaters heat water as it flows through the appliance rather than storing a large quantity of hot water. When a hot water tap is opened, the unit activates its heating system.

The available hot water temperature and flow depend on the unit's capacity, incoming water temperature and flow rate.

Decentralised heaters are installed close to the point where hot water is needed. This can reduce long hot water pipe runs, distribution heat losses and waiting times.

They can also allow independent control of different outlets. However, the best solution depends on electrical capacity, water demand and building layout.

Instantaneous water heaters can reduce standby storage losses because they heat water when it is needed. Point-of-use installation can also reduce distribution losses.

Overall efficiency and environmental impact depend on the model, electricity source, water usage and installation conditions.

Open-loop control adjusts heating based on predetermined operating conditions without continuously correcting the actual outlet temperature.

Closed-loop control uses sensor feedback to adjust heating power and maintain the selected temperature more accurately as water flow or inlet temperature changes. This can improve comfort and temperature stability.

Electric instantaneous water heaters generally use resistance heating elements. Common designs include bare-wire and sheathed heating elements.

Different systems have different technical requirements, including water quality, electrical supply and maintenance conditions. The suitable design depends on the product.

Energy labelling requirements vary by market and regulation. Under the European Union's ErP framework, relevant product groups include certain space heaters, water heaters and hot water storage tanks.

The label helps compare energy performance within applicable product categories. Requirements for products sold in Lebanon should be checked against local regulations.