Need help to install your parts?
Trust Boospa Services

GECKO
Ref : A-000000-0e504

Heater IN.THERM 2kW / 3.8kW / 4kW

In Stock
615,00 €
525,79 £
Delivery Worldwide delivery
  • 100% compatible parts
    100% compatible parts

  • Warranty - 2 years
    Warranty - 2 years

Technical characteristics

GECKO IN.THERM 2kW / 3.8kW / 4kW heater

Intelligent system that allows water to be heated remotely and does not require any maintenance.
4kW model replaced by 3.8kW model
Smart water heater of which we have integrated electronics inside the power module. It includes a temperature probe integrated and a new water flow detection function that eliminates installation of a pressure switch. The In.therm heater controls levels power through a single element, thus extending its life by heating at high power only when required. No adjustment is necessary and gives you rock-solid reliability.


References of IN.THERM heater models :
  • 2kW model GECKO reference: 0603-421003 (Old reference: 0603-421002)
  • 3.8kW model GECKO reference: 0603-421005
  • 4kW model GECKO reference: 0603-421001 (Replaced by the model 3.8kW)


3 models : 2kW / 3.8kW / 4kW (not available)

Product dimensions :
  • Width 275 mm
  • Depth 185 mm
  • Height 52 mm
Minimum flow of the circulation pump of 66 liters per minute
Recurring failures on the heaters :

  • Overvoltage on resistance
  • Resistance overheating
  • Resistor causing a short circuit


Pipe connection


The heater is connected directly to a 2 "(60mm outside) or on a 1.5 "(48mm) pipe

Supplied without fittings.

2'' pipe fittings (for 2 '' pipe either & nbsp; 60 mm outside)
Fitting also available in 1.5'' (for 1.5 '' or 48 mm)

You can also reuse your old pipe fittings if these are still functional. If your piping differs, access our range Fittings and Union in order to find the fitting matching your piping


Compatible with


Gecko control boxes IN.XM / XM2 and IN.XE
Equivalent products
My cart (0)

No product

See my cart
Continue shopping
Product added
My account
Don’t have an account yet ?
Create my account
You have an account :
Mon compte
Paypal financing
Pay in instalments with
Amount of funding 615,00 €
Your funding
  • Contribution of 153,75 €
  • Followed by 3 monthly payments of 153,75 €
  • Cost of credit 0,00 €
  • Total amount 615,00 €
  • Fixed APR of 0%

Free payment by credit card

Only for individuals residing in France. French PayPal account required. Payment in 4X is available subject to acceptance, for purchases from 30 € to 2 000 €. A credit is a binding commitment and must be repaid, check your ability to repay. See the 4X Payment Terms and Conditions. Credit offered by PayPal (Europe) S.à r.I. et Cie. S.C.A.. 22-24 Boulevard Royal. L-2449, Luxembourg, R.C.S. Luxembourg B 118 349, which is duly licensed as a Luxembourg credit institution and is under the prudential supervision of the Luxembourg supervisory authority, the Commission de Surveillance du Secteur Financier. This information is provided by PayPal.