Installing an air-to-water heat pump: complete guide to successfully complete your project
How to install an air-to-water heat pump: steps, sizing, costs, subsidies, and maintenance. Practical guide and installation tips for efficient heating.
Energy
Installing an air-to-water heat pump: complete guide to successfully complete your project
How to install an air-to-water heat pump: selection, sizing, installation steps, costs, assistance, and maintenance. Practical guide for individuals and professionals.
Solar thermal panels: how do they work?
Understanding how solar thermal panels work: types of collectors, components, efficiency, sizing, costs, and maintenance. Practical guide to choosing and optimizing a solar thermal system.
Solar thermal panels: how do they work?
Understanding the operation of solar thermal panels: principles, types of collectors, system components, efficiency, installation, and maintenance. Illustrated practical guide to choosing and optimizing a solar water heater.
Heat Pumps: Types, Advantages, and Disadvantages (Complete Guide)
The Different Types of Heat Pumps and Their Advantages / Disadvantages Compared to Other Solutions TL;DR — A heat pump (HP) extracts free calories from the air, ground, or water and delivers 3 to 5 kWh of heat for 1 kWh of electricity consumed (COP/SCOP). The “right” type (air-air, air-water, geothermal, water-water, hybrid, thermodynamic water heater) depends … Read more
Air-to-water heat pump installation: 2025 guide
TL;DR : The air-to-water heat pump remains in 2025 the most widespread decarbonized heating solution for single-family homes: it captures calories from the outside air to heat the water in a radiator network or underfloor heating. Key points: rigorous sizing, compliance with NF DTU 65.16, choice of refrigerant (R32 or R290) and public subsidies (MaPrimeRénov’, … Read more
Diagram and wiring of an air-to-air heat pump: connections, circuit breakers, cable sections (2025 Guide)
TL;DR : An air-to-air heat pump (reversible air conditioning) must be powered via a dedicated circuit protected by a 30 mA residual current device (now Type F required/recommended for single-phase inverter), then a circuit breaker rated according to the current of the outdoor unit and the cable cross-section (2.5/4/6 mm² depending on the case). Comply … Read more
Commissioning a heat pump: steps, pressurization & start-up (2025)
Commissioning a heat pump: steps, fluids, pressurization, start-up TL;DR: The commissioning of a heat pump must be carried out by a certified refrigeration technician: mechanical/electrical checks, nitrogen pressurization, deep vacuum pumping (~500 microns), and regulation adjustments. The fluid (R32 A2L, R290 A3…) requires safety conditions (EN 378, F-Gas 2024/573). A reception file documents all values. … Read more