Webasto Air Top EVO 40 High Altitude RV Diesel Heater Kit 5500m 4kW 12V inc Multi Control HD

Part Number: ATEVO40HAK
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Webasto High Altitude RV Motorhome Kit Air Top EVO 40 Diesel 4kW 12V

Extreme altitude heating kit, including a specialist version of the Webasto Air Top EVO 40 RV diesel heater with automatic altitude compensation built-in, capable of operation up to 5500m (18044ft).Powerful heat output of 4kW 13650BTU. It has impressively an economical electrical and fuel consumption.

The Air Top EVO 40 HA air heater kit assembled by Butler Technik offers all components required to install in your motorhome, campervan or RV, these include the Butler Technik Mount PRO turret plate, fixing nuts and fuel kit. This air heater can be installed in addition to conventional heating systems for optimum comfort. Stay warm and dry while your engine is off.

  • Fast and efficient independent off-grid heating at extreme altitudes, without intruding on valuable interior vehicle space. Capable of providing heat at altitudes up to 18044ft 5500m above sea level
  • Low fuel consumption of 0.05 - 0.13 gal/h (0.0.22 - 0.59l/h) depending on modulated heat output of 5100 BTU - 13650 BTU (1.5kW - 4kW)
  • Includes the Webasto Multi Control HD Timer, with active 7-day programmable timing functions, instant heat mode, vent mode and digital fault code readout
  • Genuine Webasto manufactured and guaranteed heater kit from an authorised Webasto distributor. Worldwide technical support, North America USA, Canada, Europe, Australasia

High altitude ready

The Webasto Air Top EVO 40 HA RV kit can operate at altitudes up to 5500m 18044ft above sea level, the highest in class.

Powerful, economical and whisper quiet

Fast and efficient heat delivered through a modulated 1.5 - 4kW power output, ensuring maximum comfort whilst delivering unrivalled fuel efficiency.

Warm inside

Coming in from a cold, wet hike? Comfort delivered on time using the programmable Multi Control HD 7 Day Timer. Ensuring your RV is always warm inside.

Webasto RV Air Top EVO 40 heater kit contents included:

  • Webasto Air Top EVO 40 HA Diesel heater 12V
  • Multi Control HD 7-day programmable timer and temperature controller
  • Remote temperature sensor for accurate temperature control
  • Digitally switched fuel dosing pump - quiet operation
  • Heavy duty fuel pump holder kit to reduce operating sound of dosing pump
  • 24mm exhaust silencer muffler and additional fixing clamps
  • Combustion air muffler kit for intake air noise reduction
  • All electrical wiring harnesses, connections and fuses
  • 6m x fuel pipe, fuel connectors and in-line fuel filter
  • 1.5m x stainless steel exhaust flex pipe and 0.5m combustion air pipe
  • Webasto documentation

Additional Butler Technik components included for ease of installation:

  • Stainless steel turreted Mount PRO floor mount plate 30mm deep - safe installation through insulated flooring 5" (127mm) x 1.18" (30mm) circular flange on lower side, ideal for wooden floor linings or corrugated steel floors
  • Mount PRO stainless steel fixing nuts for safe and easy mounting the heater to the Turret plate without obstruction to ensure proper fixing of all major underside components
  • Fuel tank pickup connection kit for providing a fuel supply to the heater directly from the vehicle fuel tank

A faster, safer and simpler installation with the Butler Technik 'Mount PRO' turret floor plate

  • A faster installation with the Butler Technik designed mount plate, allowing unrestricted access to heater for SAFETY FIRST fixing of exhaust, combustion air and fuel pipe, before mounting heater to plate.
  • Unique Mount PRO design with deeper floor insulation in mind, without compromising safety and quality
  • Carefully designed to allow proper seating of heater base gasket onto floor plate. Easily access remaining heater mount studs
  • Easy access to all important safety-critical connections prior to mounting to vehicle
  • Overall plate dimensions 185mm x 165mm (7.25" x 6.5")
  • Stainless steel Circular turret flange 127mm (5") diameter x 30mm (1.18") depth

This is a Webasto heater kit package exclusive to Butler Technik. If you have any questions please contact the Butler Technik support team, who are always happy to help.


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Please Note: Delivery prices quoted are excluding VAT.

Deliveries are made from Monday to Friday excluding Bank and National Holidays.

Next Working Day Shipping* is available in UK Mainland for all orders placed before 15:00hrs. Orders placed after 15:00hrs will be dispatched the following working day on a next day service.

Orders placed on a Saturday or Sunday will be despatched the following Monday (except Bank Holidays) for expected delivery following business day (Tuesday).

For Next Business Day Delivery, please select Next Day.

Standard 2-day shipping* is available to Scottish Highlands and Islands orders placed before 15:00hrs on stocked items. Items are despatched promptly sameday. UK Courier services are typically 2 day delivery for remote UK postcodes.

WEEKEND deliveries in the UK may be possible if required at additional cost. For WEEKEND delivery quotation please call our Sales Team prior*

Standard carriage / Free-shipping - please allow 2-5 working days from clearance of payment for delivery. Typically however delivery is much quicker and 98% of orders are delivered to UK addresses within 24 - 48 hours after dispatch from warehouse.

Delivery Times - Deliveries are made Monday to Friday (excl. public holidays) typically 2-5 working days from date of order for in-stock items if the FREE DELIVERY option is chosen. An email will be sent to inform you of dispatch of goods and due delivery date. Next Day UK delivery may be selected at checkout for an additional cost.

  • Free worldwide delivery will not be available if one of the following is applicable to your order:
  • Your order has a total weight exceeding 18kgs
  • You already have a discount code applied to your order
  • Your basket contains a special order item that requires shipping additionally.

Our returns policy does not include manufacturer warrantable items. Please speak to our support department or email sales@butlertechnik.com if you believe your item has failed within warrantable circumstances, or if you wish to return an item for refund.

Refunds and Right to Cancel

You have the right to cancel your order within a 14 (fourteen) day "cooling off period", which starts the day after you receive your items. You can apply for a refund within 30 (thirty) days from the date of invoice.

Prior Notification of Intent

If you wish to cancel an order or submit a refund request under the UK Consumer Protections (Distance Selling) Regulations 2000, you must inform ButlerBus Technik Ltd of your intention to cancel or return your order by either phone, email or post within the 14 (fourteen) day cooling off period for order cancellation, or 30 (thirty) day period for refunds.

When Butlerbus Technik has received your request you will receive confirmation and given authorisation to return goods. Please quote and include your original invoice number. All goods must be in a re-saleable condition.

You will be required to return goods at your cost by an insured and trackable method. If goods go missing we will only consider a request for refund on proof of completed receipt/delivery of goods to Butler Technik from your nominated courier. Once we have received goods we will then issue you a full refund less any delivery charges.

If you are unable to arrange a return please contact us. We can arrange collection on your behalf but a charge will be made which will be deducted from your refund total.

If a delivery charge was made on the original purchase this will not be refunded as this is a service which is concluded at the point of order.

Orders that have already been processed and/or dispatched cannot be cancelled; they must be returned to ButlerBus Technik Ltd for refund following receipt of goods by customer.

We will do our very best to assist and enable a quick refund process upon receipt of returned items.

Thank you for your continued understanding during this process

Returns address
ButlerBus Technik Ltd
Bridge Road
United Kingdom

    Specific Terms:
  • All costs relating to return shipping of correctly supplied goods shall be the responsibility of the purchaser.
  • ButlerBus Technik Ltd are not responsible for any shipping or insurance charges relating to return of goods.
  • Please be aware that ButlerBus Technik Ltd may NOT be able to accept for full or partial refund/credit any items that have been prior installed by the customer before return. Such goods/components shall be deemed 'used' and therefore unable for subsequent resale.
  • Specifically, but not exclusively, the return of prior installed electronic items used for purchaser diagnostic or trouble-shooting purposes shall not be considered for full refund.
  • The decision to refund or partially refund prior installed items shall remain solely at the discretion of ButlerBus Technik Ltd.
  • The decision to refund or partially refund goods returned beyond 30 days after original date of sale shall remain solely at the discretion of ButlerBus Technik Ltd.

Your statutory rights are unaffected by the above. Consumers other than Business trade customers are further protected by UK Consumer Protection (Distance Selling) Regulations 2000.

If you have any questions please ask our support department prior to returning any items.

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Webasto Air Top EVO 40 High Altitude RV Diesel Heater Kit 5500m 4kW 12V inc Multi Control HD

£1,582.74 (ex. VAT)