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The BKU awards is voted for by readers of BKU Magazine & users of the BKU website. We are proud to announce that Zehnder Group UK Ltd were announced as winners of the Best Heating Brand 2022 award!

Zehnder Stellar Spa

It's all in the detail...

  • Prices surrounded by a box indicate stock items
  • Also available in a wide range of colours from the Zehnder colour chart
  • Stocked items delivery: 3-5 days
  • Colour finish and non-stock delivery: 4-6 weeks
  • Central heating versions available as dual energy by purchasing a self-fit supplementary heater

Note: There is no price surcharge for colour finishes.

Technical Datasheet & Fitting Instructions available here.

Not sure what size you need?

Use our handy heatloss calculator to find the perfect size for your space

Zehnder Stellar Spa STGI-060-045

STGI-060-045

  • height: 572mm / 23"
  • width: 450mm / 18"
  • output: 161 watts / 549 btu
  • +VAT
  • Stainless Steel Polished
    £304.00
    £364.80
Zehnder Stellar Spa STGI-060-045 (Painted)

STGI-060-045 (Painted)

  • height: 572mm / 23"
  • width: 450mm / 18"
  • output: 219 watts / 747 btu
  • +VAT
  • Traffic White (RAL 9016 / 9016)
    £304.00
    £364.80
Zehnder Stellar Spa STGI-060-100

STGI-060-100

  • height: 572mm / 23"
  • width: 1,000mm / 39"
  • output: 272 watts / 928 btu
  • +VAT
  • Stainless Steel Polished
    £545.00
    £654.00
Zehnder Stellar Spa STGI-060-100 (Painted)

STGI-060-100 (Painted)

  • height: 572mm / 23"
  • width: 1,000mm / 39"
  • output: 394 watts / 1344 btu
  • +VAT
  • Black Matt (0557)
    £545.00
    £654.00
  • Traffic White (RAL 9016 / 9016)
    £545.00
    £654.00
Zehnder Stellar Spa STGI-080-030

STGI-080-030

  • height: 788mm / 31"
  • width: 300mm / 12"
  • output: 171 watts / 583 btu
  • +VAT
  • Stainless Steel Polished
    £305.00
    £366.00
Zehnder Stellar Spa STGI-080-030 (Painted)

STGI-080-030 (Painted)

  • height: 788mm / 31"
  • width: 300mm / 12"
  • output: 218 watts / 744 btu
  • +VAT
  • Traffic White (RAL 9016 / 9016)
    £305.00
    £366.00
Zehnder Stellar Spa STGI-080-045

STGI-080-045

  • height: 788mm / 31"
  • width: 450mm / 18"
  • output: 220 watts / 751 btu
  • +VAT
  • Stainless Steel Polished
    £365.00
    £438.00
Zehnder Stellar Spa STGI-080-045 (Painted)

STGI-080-045 (Painted)

  • height: 788mm / 31"
  • width: 450mm / 18"
  • output: 294 watts / 1003 btu
  • +VAT
  • Traffic White (RAL 9016 / 9016)
    £294.00
    £352.80
Zehnder Stellar Spa STGI-080-050

STGI-080-050

  • height: 788mm / 31"
  • width: 500mm / 20"
  • output: 234 watts / 798 btu
  • +VAT
  • Stainless Steel Polished
    £386.00
    £463.20
Zehnder Stellar Spa STGI-080-050 (Painted)

STGI-080-050 (Painted)

  • height: 788mm / 31"
  • width: 500mm / 20"
  • output: 313 watts / 1068 btu
  • +VAT
  • Black Matt (0557)
    £386.00
    £463.20
  • Traffic White (RAL 9016 / 9016)
    £386.00
    £463.20
Zehnder Stellar Spa STGI-080-060

STGI-080-060

  • height: 788mm / 31"
  • width: 600mm / 24"
  • output: 243 watts / 829 btu
  • +VAT
  • Stainless Steel Polished
    £429.00
    £514.80
Zehnder Stellar Spa STGI-080-060 (Painted)

STGI-080-060 (Painted)

  • height: 788mm / 31"
  • width: 600mm / 24"
  • output: 363 watts / 1239 btu
  • +VAT
  • Black Matt (0557)
    £429.00
    £514.80
  • Traffic White (RAL 9016 / 9016)
    £429.00
    £514.80
Zehnder Stellar Spa STGI-120-030

STGI-120-030

  • height: 1,220mm / 48"
  • width: 300mm / 12"
  • output: 240 watts / 819 btu
  • +VAT
  • Stainless Steel Polished
    £434.00
    £520.80
Zehnder Stellar Spa STGI-120-030 (Painted)

STGI-120-030 (Painted)

  • height: 1,220mm / 48"
  • width: 300mm / 12"
  • output: 332 watts / 1133 btu
  • +VAT
  • Traffic White (RAL 9016 / 9016)
    £434.00
    £520.80
Zehnder Stellar Spa STGI-120-045

STGI-120-045

  • height: 1,220mm / 48"
  • width: 450mm / 18"
  • output: 309 watts / 1054 btu
  • +VAT
  • Stainless Steel Polished
    £497.00
    £596.40
Zehnder Stellar Spa STGI-120-045 (Painted)

STGI-120-045 (Painted)

  • height: 1,220mm / 48"
  • width: 450mm / 18"
  • output: 448 watts / 1529 btu
  • +VAT
  • Black Matt (0557)
    £497.00
    £596.40
  • Traffic White (RAL 9016 / 9016)
    £497.00
    £596.40
Zehnder Stellar Spa STGI-120-050

STGI-120-050

  • height: 1,220mm / 48"
  • width: 500mm / 20"
  • output: 353 watts / 1204 btu
  • +VAT
  • Stainless Steel Polished
    £524.00
    £628.80
Zehnder Stellar Spa STGI-120-050 (Painted)

STGI-120-050 (Painted)

  • height: 1,220mm / 48"
  • width: 500mm / 20"
  • output: 512 watts / 1747 btu
  • +VAT
  • Black Matt (0557)
    £524.00
    £628.80
  • Traffic White (RAL 9016 / 9016)
    £524.00
    £628.80
Zehnder Stellar Spa STGI-120-060

STGI-120-060

  • height: 1,220mm / 48"
  • width: 600mm / 24"
  • output: 379 watts / 1293 btu
  • +VAT
  • Stainless Steel Polished
    £578.00
    £693.60
Zehnder Stellar Spa STGI-120-060 (Painted)

STGI-120-060 (Painted)

  • height: 1,220mm / 48"
  • width: 600mm / 24"
  • output: 554 watts / 1890 btu
  • +VAT
  • Black Matt (0557)
    £578.00
    £693.60
  • Traffic White (RAL 9016 / 9016)
    £578.00
    £693.60
Zehnder Stellar Spa STGI-150-045

STGI-150-045

  • height: 1,508mm / 59"
  • width: 450mm / 18"
  • output: 361 watts / 1232 btu
  • +VAT
  • Stainless Steel Polished
    £767.00
    £920.40
Zehnder Stellar Spa STGI-150-045 (Painted)

STGI-150-045 (Painted)

  • height: 1,508mm / 59"
  • width: 450mm / 18"
  • output: 556 watts / 1897 btu
  • +VAT
  • Traffic White (RAL 9016 / 9016)
    £767.00
    £920.40
Zehnder Stellar Spa STGI-150-060

STGI-150-060

  • height: 1,508mm / 59"
  • width: 600mm / 24"
  • output: 448 watts / 1529 btu
  • +VAT
  • Stainless Steel Polished
    £880.00
    £1,056.00
Zehnder Stellar Spa STGI-150-060 (Painted)

STGI-150-060 (Painted)

  • height: 1,508mm / 59"
  • width: 600mm / 24"
  • output: 687 watts / 2344 btu
  • +VAT
  • Traffic White (RAL 9016 / 9016)
    £880.00
    £1,056.00
Zehnder Stellar Spa STGI-170-045

STGI-170-045

  • height: 1,724mm / 68"
  • width: 450mm / 18"
  • output: 434 watts / 1481 btu
  • +VAT
  • Stainless Steel Polished
    £883.00
    £1,059.60
Zehnder Stellar Spa STGI-170-045 (Painted)

STGI-170-045 (Painted)

  • height: 1,724mm / 68"
  • width: 450mm / 18"
  • output: 640 watts / 2184 btu
  • +VAT
  • Traffic White (RAL 9016 / 9016)
    £883.00
    £1,059.60
Zehnder Stellar Spa STGI-170-050

STGI-170-050

  • height: 1,724mm / 68"
  • width: 500mm / 20"
  • output: 477 watts / 1628 btu
  • +VAT
  • Stainless Steel Polished
    £927.00
    £1,112.40
Zehnder Stellar Spa STGI-170-050 (Painted)

STGI-170-050 (Painted)

  • height: 1,724mm / 68"
  • width: 500mm / 20"
  • output: 704 watts / 2402 btu
  • +VAT
  • Black Matt (0557)
    £927.00
    £1,112.40
  • Traffic White (RAL 9016 / 9016)
    £927.00
    £1,112.40
Zehnder Stellar Spa STGI-170-060

STGI-170-060

  • height: 1,724mm / 68"
  • width: 600mm / 24"
  • output: 517 watts / 1764 btu
  • +VAT
  • Stainless Steel Polished
    £1,013.00
    £1,215.60
Zehnder Stellar Spa STGI-170-060 (Painted)

STGI-170-060 (Painted)

  • height: 1,724mm / 68"
  • width: 600mm / 24"
  • output: 791 watts / 2699 btu
  • +VAT
  • Black Matt (0557)
    £1,013.00
    £1,215.60
  • Traffic White (RAL 9016 / 9016)
    £1,013.00
    £1,215.60