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The Thermowatt Incoloy 800 is a premium, heavy-duty 3kW replacement immersion heater engineered for high-performance domestic water heating applications. Featuring a 14-inch element length, this unit provides optimal heat distribution throughout the mid-to-lower sections of a hot water cylinder. It is built with a specialised 1 3/4" BSP threaded boss, making it an essential, precise fit for specific unvented and vented cylinders that require this non-standard, smaller thread size rather than the more common 21/4" profile.
- 3kW Incoloy Immersion heater for use with domestic applications
- Element length: 14"
- Complete with combined plugin Thermowatt RTS-3 dual function high-temperature range thermostat
- Brand
- Thermowatt
- Category
- Immersion Heater
- Product Code
- 580-255-0002
- Main Material
- Incoloy
- Main Colour
- White
- Box Quantity
- 1
- Weight
- 647 g
- Width
- 90 mm
- Height
- 435 mm
- Diameter
- 90 mm
- GTIN
- 0708747447071
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Collect in-store
Collection is available between 7:30 am and 4:30 pm.
Please bring your order confirmation/number with you on collection.
Please wait for us to contact you before making your way to collect your items.
We will hold your order for 1 working week before returning the items.Estimated collection Thursday 29th.
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Our delivery policy
We will deliver goods as soon as we can. An estimated delivery date will be provided on the checkout pages. For stock items, this may be as soon as the next day; for out-of-stock items, it may take a day or two longer.
£5 standard delivery across the UK for most products on our website, with free delivery on orders above £100 for customers within 10 miles of our Welwyn Garden City location. Some larger items may incur an additional surcharge to cover our delivery costs.
See our 'Terms of Sale' for more information on our delivery policy.
Doorstep delivery only.Order before 2.00pm for estimated delivery on Tuesday 27th.
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Our returns policy
See our 'Terms of Sale' for more information on our returns policy.
Restocking charges apply.