Complete boilers in Madrid: types, installation, and technical service
A complete boiler integrates the body, burner, and control board into a single unit. We install, maintain, and repair combi boilers, condensing boilers, and low NOx boilers in Madrid and the Corredor del Henares. Our own technicians hold gas and PF-II refrigeration licenses.
What is a complete boiler?
When we talk about a complete boiler, we refer to the set marketed as an autonomous unit: the heat exchanger (where the water circulates), the burner (which manages the gas-air mixture), and the electronic control board, all integrated and factory pre-adjusted. This differentiates it from the "body only," which is the heat exchanger without the burner, commonly found in industrial installations or in renovations where the existing burner is utilized. For residential and tertiary use in Madrid, the complete boiler is always the standard option.
In the current market, there are three main families coexisting according to usage and environmental regulations. The combi boilers They generate heating and domestic hot water in a single unit, eliminating the need for a separate storage tank. The condensing boilers They recover the latent heat from the exhaust gases and achieve efficiencies of 95–109% over LHV; they are mandatory in new installations according to the RITE. The low NOx boilers They comply with the nitrogen oxide emission limits required by the Madrid Low Emission Zone (ZBE) and are a requirement for obtaining the installation legalization in the city.
Check applicable conditions for the equipment and contracted work: manufacturer, installation and repair do not necessarily have the same coverage. Keep the budget, invoice and documentation, without prejudice to the corresponding legal rights.
Included services
- → Certified installation of a gas boiler with processing of the certificate and registration with Red Naturgy / Nedgia
- → Annual RITE maintenance: cleaning of the burner, combustion analysis, inspection of the safety valve, and bleeding of the circuit.
- → Repair of faults with diagnosis on the first visit and original parts in stock
- → Replacement and removal of the old equipment (including waste management)
- → Service area: Madrid city, Corredor del Henares (Alcalá, Torrejón, Coslada, Arganda) and the southern and northern metropolitan area
Explore by type of boiler
Frequently Asked Questions
What is the difference between a complete boiler and a single boiler body?
The "boiler body" is solely the heat exchanger: the assembly of tubes or plates where the water absorbs the energy from combustion. It does not include the burner or control. It is used in industrial installations or refurbishments where the existing burner is utilised. The complete boiler incorporates all three components—body, burner, and control board—into a single ready-to-install unit, which is common in residential and tertiary-use buildings in Madrid.
What type of complete boiler is the most efficient?
Before replacing a boiler, compare the full cost of repair and new installation, equipment condition, material availability and your home's consumption. A percentage of savings or amortisation period cannot be promised without studying the case.
Do I need any certificate or paperwork to install a gas boiler?
Yes. In Spain, the installation of gas boilers must be carried out by an authorised installation company (category EG or IG, according to the Gas Installations Regulation RD 919/2006). Upon completion of the installation, a Gas Installation Certificate is issued, which the supplying company requires to activate the supply. Our technicians hold the required gas installer license, and we handle all the paperwork: certificate, registration with the distributor, and communication to the industry if applicable.