Free Delivery
On Most UK Mainland Orders
Expert Advice
We're Here To Help!
Secure Shopping
Shop Safely With Us
5* Reviews
Our Customers Love Us
4.8 Average
916 Reviews
Rizwan D
Great seller, big variety to choose from and competitive prices
Angela F
After an initial hiccup with the order, I found the staff to be very helpful and the whirlpool bath arrived safely in good ⏲️ The plumber had no problems with fitting. The price was very competitive and I am really pleased.
Koller Inline Water Heater
£176.23 (inc. VAT) £211.98
-
DESCRIPTION
Koller Inline Water Heater - Limited Stock Available At This Price
An inline water heater keeps your bath water hot allowing you to enjoy a longer soak without having to top up with hot water.
The heater is built into the whirlpool system and as water passes through the coil it is heated.
Please note the heater is not designed to heat the water from cold.
The heater will be fully fitted to your whirlpool bath and tested before delivery.
The heater is not available in kit form and should be purchased with a bath.
Main Features
- Keeps your bath water hotter for longer
- Great value
- Fitted and tested
- Made from composite material for complete safety. Some of the cheaper heaters use metal casings, metal casings and whirlpool bath pipe can be dangerous when overheated.
Product Reviews
Young P
Very efficient service. Bath not installed yet so can’t comment on product
Lami
Amanda and Martin were quite helpful with pre-sales/post-sales enquiries.
The delivery was as scheduled.
Very personable staff
Ask a question about the product
Enter your question below
Previous Questions
Previous Questions
Mrs Emma Bartholomew
Q: If a heater is being fitted do we need to up rate the electrical supply from 13 amp to something bigger?
A:
Hi
The heater can share the 13 amp connection with the pump or it can have a seperate 13 amp supply. The heater works off a flow switch so it is always on if the whirlpool is on, if you have a seperate 13 amp for the heater it will allow you to turn it off for example in the summer when you might not need it on.
Amrit
Q: Can the heater be switched off independently? Can the temperature of the heated water be adjusted?
A:
Hi
No, it comes on automatically when you switch on the whirlpool. You can't set the temperature.
Optional Extras and Upgrades
12 Jet Air Spa Upgrade
£299.99
was
£383.29
Chromotherapy LED Mood Lighting System x 24 Lights
£499.99
Chromotherapy Underwater Bath Light
£169.19
was
£203.99
Ohia Bath Filler with Push Button Waste & Overflow for Whirlpool Baths
£179.73
was
£189.19
Residual Current Circuit Breaker - RCCB RCD RCB RCCD
£31.79
Blog posts
Whirlpool and Jacuzzi Bath Blog
Introducing The Grosvenor: A Pinnacle of Luxury in Freestanding Whirlpool Baths
Introducing The Grosvenor: A Pinnacle of Luxury in Freestanding Whirlpool BathsIn the home spa experiences world, few products combine timeless elegance, cutting-edge technology,...
Take a look...
Record-Breaking Bathrooms: 5 Surprising Bath-Related World Records / Updated for 2025
Record-Breaking Bathrooms: 5 Surprising Bath-Related World RecordsPublished: 2021-01-05 02:00 EET | Updated: 2025-03-06 15:18 EET It’s easy to assume that the bathroom is...
Take a look...
Bathe Easy Whirlpool Shower Baths: Revolutionizing Accessible Bathing in 2025
Introducing Bathe Easy Whirlpool Shower Baths: Revolutionizing Accessible Bathing in 2025At The Spa Bath Company, we’re thrilled to unveil our new range of Bathe Easy Whirlpool...
Take a look...
The 5 Ultimate Whirlpool Bath Upgrades You Can Make in 2025
There’s no feeling quite like installing your first whirlpool bath. After all, you’ve just unlocked a world of indulgent relaxation that will last a lifetime. But why...
Take a look...