320 litre slimline stainless steel water heater palletised before wrapping

EXCELSIOR WT

Stainless steel slimline and super-slimline water heaters designed for reliable hot water storage in restricted installation spaces.

  • Slimline Cylinder Design
  • Super-Slimline Options
  • Direct & Indirect Models
  • External Expansion
  • 80–210 Litre Range
  • Made in Britain
Capacity Range
80–210 Litres
Cylinder Types
Slimline / Super-Slimline
Models
Direct / Indirect
Expansion
External Expansion
Construction
Stainless Steel

Slimline Water Heaters for Restricted Spaces

EXCELSIOR WT slimline water heaters are designed for hot water systems where a standard cylinder diameter is not suitable. Their narrower vessel design makes them a practical choice for cupboards, tight service areas and restricted plant room spaces where installation width is limited.

The range includes slimline and super-slimline models, with direct and indirect options available depending on the heat source. Direct models use immersion heaters to heat the stored water, while indirect models connect to an external heat source through an internal coil.

300 litre complete stainless steel commercial water heater

EXCELSIOR WT Dimensions

WXI diagram showing tank dimensions
Size WT Slimline Direct Model Indirect Model
Height (H) Diameter (D) Inlet Position (I) Top Connection (T) Immersion 1 (IH1) Immersion 2 (IH2) Coil Return (CR1) Coil Flow (CF1) Coil Rating
100L 1,044 515 179 207 193 550 209 320 14.6kW
130L 1,326 515 179 207 193 643 209 320 14.6kW
150L 1466 515 179 207 193 682 209 320 14.6kW
175L 1,738 515 179 207 193 832 209 400 20.0kW
210L 2,010 515 179 207 193 1,008 209 400 20.0kW

Note: Dimensions are shown in millimetres. Lettered dimensions correspond with the EXCELSIOR WT technical drawing.

WXI diagram showing tank dimensions
Size WT Super-Slimline Direct Model Indirect Model
Height (H) Diameter (D) Inlet Position (I) Top Connection (T) Immersion 1 (IH1) Immersion 2 (IH2) Coil Return (CR1) Coil Flow (CF1) Coil Rating
80L 1,110 462 165 200 179 N/A 195 320 14.6kW
100L 1,344 462 165 200 179 664 195 320 14.6kW
130L 1,716 462 165 200 179 850 195 320 14.6kW
150L 1,935 462 165 200 179 1,122 195 320 14.6kW
165L 1,998 462 165 200 179 1,221 195 400 20.0kW

Note: Dimensions are shown in millimetres. Lettered dimensions correspond with the EXCELSIOR WT technical drawing.

Why Choose EXCELSIOR WT Slimline Water Heaters?

EXCELSIOR WT water heaters are built for installations where available space can limit cylinder choice. The slimline and super-slimline vessel designs allow reliable hot water storage to be specified where a standard diameter cylinder may be too wide.

The range gives installers a choice of direct and indirect models to suit different system requirements. This supports both electric heating and systems connected to an external heat source.

With stainless steel construction, external expansion and capacities from 80 to 210 litres, EXCELSIOR WT provides a practical water heating solution for restricted spaces without compromising on long-term durability.

WXI water heating cylinder installed for testing

Explore More Water Heating

200 litre stainless steel domestic water heater with immersion heater

EXCELSIOR WD

Stainless steel domestic water heaters designed for reliable hot water storage, long service life and everyday household performance.

VIEW DETAILS >

150 litre domestic stainless steel water heater

EXCELSIOR WXI

Stainless steel water heating cylinder with patented Venturi internal air-gap technology for reduced maintenance.

VIEW DETAILS >

150 litre domestic stainless steel water heater

EXCELSIOR HP

Heat pump compatible stainless steel cylinder designed for air source and ground source heating systems.

VIEW DETAILS >

CONTACT US
If you’re looking to reduce operating costs, improve hygiene, and enhance sustainability, reaching out to Fabdec Group is a smart strategic move. Based in Ellesmere, Shropshire—and with an additional European office in Gelsenkirchen, Germany—Fabdec is recognised as a pioneer in stainless-steel thermal solutions, backed by over 60 years of engineering excellence. We design, manufacture and supply an extensive portfolio including energy-efficient milk cooling systems, stainless-steel unvented water heaters, heat recovery units, process vessels, and integrated skid-set systems tailored to dairy, food processing, renewables and HVAC applications. Whether your needs involve bespoke stainless-steel vessels for process engineering, dairy systems to optimise milk handling, or heat recovery solutions to reduce energy consumption, contacting Fabdec via their website or live chat ensures you’re speaking directly with a responsive, customer-focused team committed to high quality and innovation.

Consent