AGUAdens 16, 22 and 37 is the new range of wall-hung instantaneous condensing water heaters, completely patented and assembled by Cosmogas.

 AGUAdens is the ideal solution for residential use, as well as for those utilities requiring large water production, even simultaneously, like sports or industrial facilities, gyms and spas.


Product category: Indoor condensing water heater

Output: 16 - 22 - 37 litres (27 - 34 - 61 kW)

Suited for: Residential

Hot water heat exchanger: TITANIUM stainless steel resistant to corrosion and to chlorine

Domestic hot water: 3 showers simultaneously (AGUAdens 37 - 5 showers)

Energy saving: +30% compared to conventional water heaters

Condensing domestic hot water: the money-saver

New energy saving legislations and modern residential and commercial building insulation techniques have significantly reduced heating needs.

On the other hand hot water usage is increasing as much as fuel consumption for its production.

Considering that hot water is used 365 days a year in all parts of the world, saving on hot water production has become a priority.


Save up to 100€ compared
to conventional water heaters

AGUAdens is a newly developed condensing water heater, able to satisfy the needs of domestic hot water production in homes, offices, sport centres, shopping malls.

The first to guarantee energy saving, comfort, ease of use, reliability and low environmental impact.

Compared to conventional water heaters, with AGUAdens you will save up to 30%.

Safe hot water
with the anti-Legionella function

AGUAdens, by producing hot water instantaneously, ensures maximum hygiene and prevents any risk of contamination from Legionella bacteria, problem that may occur when hot water is produced using storage tanks or boilers.

Ideal even for high domestic hot water needs

AGUAdens can be installed in cascade sequence in an unlimited number of units, which makes it the ideal solution for high hot water needs at constant temperature, like sports centres, restaurants, spas, hairdressers, campsites, etc., thanks to its high capacity (35l/m).

When AGUAdens is combined with storage tanks, the control panel automatically activates the anti-Legionella cycle.

Titanium heat exchanger
resistant to corrosion

Cosmogas is the only manufacturer who can offer a Titanium primary heat exchanger that can be supplied by mains water, guaranteeing a great resistance to corrosion and to the aggressiveness of chlorinated waters.

Find out all the benefits of AGUAdens condensing water heater

Details that make the difference


Thanks to COVER-BOX, the ABS, anti-UV weather-resistant insulated cover, AGUAdens can be installed outdoor!

Its compact dimensions and elegant design make it easy to fit in any location.


Control panel with digital backlit display for an easy and intuitive visualization of parameters, boiler phases, error messages, with electronic temperature control.

Display backlighting turns off after 5 minutes of inactivity.

Documentation about AGUAdens

Product Guide

Brochures – File type: PDF

Brochure Domestic Hot Water specialists

Brochures – File type: PDF

Brochure AGUAdens

Brochures – File type: PDF

AGUAdens installation, use and maintenance manual

Installation and maintenance manuals, User Manuals – File type: PDF

Are you a professional? Find the technical documentation about this product in the Professionals section.

Documentation for the professional