Main Heating 170 Litre Direct Unvented Hot Water Cylinder

Product Ref: 720636101

25 Year Guarantee
  • Volume: 170ltr
  • Weight: 29.000kg
  • Dimensions: H:1241mm
  • Diameter: 550mm
  • Lead time approx. 2 working days

    Home Delivery

    United Kingdom mainland delivery from FREE ex VAT

    FREE Standard Cylinder Delivery - Postcode exclusions apply to AB, IV, PH, PA, KW, HS, KA, KY, DD, BT, TR, PO30, GY, JE, IM

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    Main Heating 170 Litre Direct Unvented Hot Water Cylinder Downloadable Documents

    Main Heating 170 Litre Direct Unvented Hot Water Cylinder Description

    Main Heating 170 Litre Direct Unvented Hot Water Cylinder

    These Main Heating cylinders are easy to install, with front access to controls and connections. The coil-in-coil heat exchanger ensures rapid heat recovery and 50mm of factory injected polyurethane foam ensures that heat loss and running costs are kept to a minimum. The high grade stainless steel inner cylinder ensures a long product life with low maintenance.

    Package includes

    • Unvented water heater incorporating 2 x immersion heaters & thermal controls 
    • Factory fitted temperature/pressure relief valve (set at 90°C / 1 Mpa (10bar)) 
    • Cold water combination valve assembly 
    • Expansion vessel & mounting bracket
    • Tundish 
    • Compression nuts & olives 
    • Immersion heater spanner 
    • Installation & servicing instructions 
    • Guarantee card


    • 25 year warranty on stainless steel inner vessel*
    • Coil-in-coil heat exchanger
    • High grade stainless steel cylinder
    • Low heat loss
    • Incoloy 800 alloy sheathed elements
    • KIWA approved
    • Manufactured in the UK

    Main Heating 170 Litre Direct Unvented Hot Water Cylinder Specification

    • Product Code: PF
    • Guarantee: 25 Year Guarantee

    Main Heating 170 Litre Direct Unvented Hot Water Cylinder Delivery Information


    The delivery of a tank can be confusing as each manufacturer offers a slightly different service and lead time. Please refer to our Delivery Information page.  Standard tank deliveries are "kerbside" which means the tank will be delivered to the kerb only and not positioned further. Should you have specific delivery requirements or restrictions, please contact us to discuss.


    Tanks Over 2500L – Articulated Lorry – Customer Offload:

    These tanks will be delivered on an articulated vehicle (approximately 16.5m long x 2.6m wide x 3m high) which has no offloading on board, it is the customer's responsibility to offload the tank, which may require a telehandler / forklift.  Curtain sided vehicles are also used, so please note that if there are obstacles or hanging branches on the road to the delivery site etc, the driver may refuse to drive the vehicle to the customer's location due to the possibility of damaging the vehicle. Please let us know if there are any obstructions before delivery, so we can arrange alternative transport.


    18 Tonne Tail Lift HGV

    This vehicle is the size of the largest bin lorries (for comparison) and is approximately 8.2m long x 2.6m wide x 4m high, often curtain sided so please note that if there are hanging branches etc, these vehicles will not attempt to drive down due to the possibility of damaging the vehicle and so it is recommended that a smaller vehicle is requested. Tanks will be lowered to the ground but not positioned as this is a kerbside delivery.  If a smaller vehicle is required, please email us at quoting your order number and name.


    HIAB Delivery

    HIAB delivery is available but must be requested and there will be an additional cost for this service. If a HIAB delivery is required, please email us at quoting your order number and name, and we will come back to you with a price for this service.



    Most accessories will be delivered within 1-3 working days (certain products and postcodes may take longer, please check the product page for update to date information). If you require them quicker, we can on occasions offer a next day service (please contact us to discuss). If the item(s) are out of stock, we will advise you of the expected lead time, and you will of course have the opportunity to cancel with a full refund.



    Main Heating 170 Litre Direct Unvented Hot Water Cylinder Returns Information

    Customers may return items within 14 calendar days (as per our Terms & Conditions) - refer to section 7. **

    All Items must be returned unused, refunds cannot be issued for used or previously installed items.

    Please be aware that returning a tank can be complicated and expensive, so please check that you are ordering the correct item (we suggest checking the dimensions very carefully).

    If you wish to return goods, please complete the form on this page to provide further information.

    Once your request is approved, a valid Returns Authorisation Number (RAN) will be issued to initiate the returns process along with information on how & where to return your order along with any costs involved.

    Please DO NOT return any goods without this authorisation. Goods cannot be accepted without this.

    Returns are not accepted at our Minehead Office, please wait until we contact you before returning any goods.

    View Fuel Tank Shop return policy now.

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