As a leading boiler parts supplier, we offer a wide range of:
- OEM (New and Refurbished)
- Compatible (New and Refurbished)
- Refurbished parts
National Boiler Spares is the only company in the UK that is accredited to:
- BSI KITEMARK (Refurbished parts)
- ISO 9001:2015
- ISO 14001:2015
Assuring all our customers we provide the highest level of quality parts and services.
DIRECT SALE
Directly purchasing the product from us
REPAIR SERVICE
Please be aware that we will repair your part, no part will be sent to you from us.
An email will be sent to you confirming your order, please note that it will state that your order
has been dispatched but no part at this point will be dispatched, please send your part to us for
repair
How does this service works?
- When purchasing this service, the customer is required to send the faulty part to us.
- Once we have received the part, it will be inspected and tested by our engineers to assess any faults
- If your part is in repairable condition, then we will repair this for you. If there are any issues, you will be contacted by our Customer Service Team
- Once repaired, we will send your part back to you
ADVANCE REPLACEMENT SERVICE
Upon selecting this service you are purchasing a DIRECT PART from us, but you have the option to
send your old part to us for a partial refund.
This service will entitle you to a £30 refund only if::
- Your old part is in a repairable condition
- Your part is not burned, or water damaged beyond repair
- We receive the part within 14 DAYS of the purchase
The customer is responsible for all postage and packaging costs.
The original invoice and contact details must be sent to us with the part to allow for a refund.
Wallsend, Tyne And Wear, NE28 6SG.
Your refund will be processed via the original payment method.
*Note to customer* Not all of our products are applicable for each service.
- DIRECT SALE
- REPAIR SERVICE
- ADVANCE REPLACEMENT SERVICE
Once you have selected the part you need, the drop-down options will show you what is available for
that part.
Please contact our Customer Service Team for support or information if required
OUR ADDRESS
Heating Trade Supplies, Tyne View Terrace
Wallsend, Tyne and Wear, NE28 6SG.
We provide free first-class postage for UK and mainland areas. Orders must be placed
before 3 pm Monday to Friday for same-day dispatch. If purchased Saturday, Sunday and
Bank Holidays, it will be processed and dispatched the next working day.
DELIVERY TIME
We offer free next day delivery on orders over £35.
All parts ordered before 3pm Monday – Friday will be dispatched the same day, (Friday
orders will be delivered the next working day), however next day delivery cannot be
guaranteed.
WARRANTY
All our products are subject to 1 YEAR WARRANTY.
All warranty returns must be sent with a copy of the invoice and contact details.
Once received our engineers will test the part and if required one of our Customer
Services specialists will contact you with an update.
Exclusions to warranty:
Fans: Fan coils and motors failing due to boiler overheating will not be covered
under warranty.
For Electronic parts such as Printed Circuit Boards (PCB): if the parts have
experienced any water damage or external electrical shortage this will not be covered by
warranty.
Failures or defects caused by misuse.
RETURNS POLICY
Complete the return form and provide return reasons.
If the part you received is faulty, we will refund postage up to £6.50.
A 20% restocking fee is applied if returned items are not faulty.
If your part is lost or the incorrect item has been sent out, we will arrange a
collection and issue the appropriate replacement.
Your refund will be processed via the original payment method.
This part fits the following boilers:
| Fits Appliance(s) | GC No. | |
| Vaillant Ecotec Exclusive 832 VUW 32/4 2007- 2016 | - | 47-044-37 |
| Vaillant Ecotec Exclusive 835 VUW 356/5-7 | - | 47-044-66 |
| Vaillant Ecotec Exclusive 838 VUW 386/4 2007-2016 | - | 47-044-38 |
| Vaillant Ecotec Exclusive 843 VUW 436/5-7 | - | 47-044-67 |
| Vaillant Ecotec Plus 612 VU 126/5-5 2012-2012 | - | 41-044-60 |
| Vaillant Ecotec Plus 612 VU 126/5-5 A R4 2015 Onwards | - | 41-044-78 |
| Vaillant Ecotec Plus 612 VU 126/5-5 R 6 2017 Onwards | - | 41-694-20 R6 (0010021828) |
| Vaillant Ecotec Plus 612 VU 126/5-5 R1 2012-2013 | - | 41-044-60 R1 |
| Vaillant Ecotec Plus 612 VU 126/5-5 R2 2013-2015 | - | 41-044-60 R2 |
| Vaillant Ecotec Plus 612 VU 126/5-5 R4 2015-2015 | - | 41-044-60 R4 |
| Vaillant Ecotec Plus 612, 615, 618, 624, 630, 637 | - | ECOTEC PLUS 612, 615, 618, 624, 630, 637 |
| Vaillant Ecotec Plus 615 VU 156/5-5 2012-2012 | - | 41-044-61 |
| Vaillant Ecotec Plus 615 VU 156/5-5 A R4 2015 Onwards | - | 41-044-79 |
| Vaillant Ecotec Plus 615 VU 156/5-5 R 6 2017 Onwards | - | 41-694-21 R6 (0010021829) |
| Vaillant Ecotec Plus 615 VU 156/5-5 R1 2012-2013 | - | 41-044-61 R1 |
| Vaillant Ecotec Plus 615 VU 156/5-5 R2 2013-2015 | - | 41-044-61 R2 |
| Vaillant Ecotec Plus 615 VU 156/5-5 R4 2015-2015 | - | 41-044-61 R4 |
| Vaillant Ecotec Plus 618 VU 186/5-5 2012-2012 LPG | - | 41-044-66 |
| Vaillant Ecotec Plus 618 VU 186/5-5 2012-2012 NG | - | 41-044-62 |
| Vaillant Ecotec Plus 618 VU 186/5-5 A R4 2015 Onwards LPG | - | 41-044-81 |
| Vaillant Ecotec Plus 618 VU 186/5-5 A R4 2015 Onwards NG | - | 41-044-80 |
| Vaillant Ecotec Plus 618 VU 186/5-5 R 6 2017 Onwards LPG | - | 41-694-23 R6 (0010021831) |
| Vaillant Ecotec Plus 618 VU 186/5-5 R 6 2017 Onwards NG | - | 41-694-22 R6 (0010021830) |
| Vaillant Ecotec Plus 618 VU 186/5-5 R1 2012-2013 LPG | - | 41-044-66 R1 |
| Vaillant Ecotec Plus 618 VU 186/5-5 R1 2012-2013 NG | - | 41-044-62 R1 |
| Vaillant Ecotec Plus 618 VU 186/5-5 R2 2013-2015 LPG | - | 41-044-66 R2 |
| Vaillant Ecotec Plus 618 VU 186/5-5 R2 2013-2015 NG | - | 41-044-62 R2 |
| Vaillant Ecotec Plus 618 VU 186/5-5 R4 2015-2015 LPG | - | 41-044-66 R4 |
| Vaillant Ecotec Plus 618 VU 186/5-5 R4 2015-2015 NG | - | 41-044-62 R4 |
| Vaillant Ecotec Plus 624 VU 246/5-5 2012-2012 | - | 41-044-63 |
| Vaillant Ecotec Plus 624 VU 246/5-5 A R4 2015 Onwards | - | 41-044-82 |
| Vaillant Ecotec Plus 624 VU 246/5-5 R 6 2017 Onwards | - | 41-694-24 R6 (0010021832) |
| Vaillant Ecotec Plus 624 VU 246/5-5 R1 2012-2013 | - | 41-044-63 R1 |
| Vaillant Ecotec Plus 624 VU 246/5-5 R2 2013-2015 | - | 41-044-63 R2 |
| Vaillant Ecotec Plus 624 VU 246/5-5 R4 2015-2015 | - | 41-044-63 R4 |
| Vaillant Ecotec Plus 630 VU 306/5-5 2012-2012 LPG | - | 41-044-67 |
| Vaillant Ecotec Plus 630 VU 306/5-5 2012-2012 NG | - | 41-044-64 |
| Vaillant Ecotec Plus 630 VU 306/5-5 A R4 2015 Onwards LPG | - | 41-044-84 |
| Vaillant Ecotec Plus 630 VU 306/5-5 A R4 2015 Onwards NG | - | 41-044-83 |
| Vaillant Ecotec Plus 630 VU 306/5-5 R 6 2017 Onwards LPG | - | 41-694-26 R6 (0010021834) |
| Vaillant Ecotec Plus 630 VU 306/5-5 R 6 2017 Onwards NG | - | 41-694-25 R6 (0010021833) |
| Vaillant Ecotec Plus 630 VU 306/5-5 R1 2012-2013 LPG | - | 41-044-67 R1 |
| Vaillant Ecotec Plus 630 VU 306/5-5 R1 2012-2013 NG | - | 41-044-64 R1 |
| Vaillant Ecotec Plus 630 VU 306/5-5 R2 2013-2014 LPG | - | 41-044-67 R2 |
| Vaillant Ecotec Plus 630 VU 306/5-5 R2 2013-2014 NG | - | 41-044-64 R2 |
| Vaillant Ecotec Plus 630 VU 306/5-5 R4 2015-2015 LPG | - | 41-044-67 R4 |
| Vaillant Ecotec Plus 630 VU 306/5-5 R4 2015-2015 NG | - | 41-044-64 R4 |
| Vaillant Ecotec Plus 637 VU 376/5-5 2012-2012 | - | 41-044-65 |
| Vaillant Ecotec Plus 637 VU 376/5-5 A R4 2015 Onwards | - | 41-044-85 |
| Vaillant Ecotec Plus 637 VU 376/5-5 R1 2012-2013 | - | 41-044-65 R1 |
| Vaillant Ecotec Plus 637 VU 376/5-5 R2 2013-2014 | - | 41-044-65 R2 |
| Vaillant Ecotec Plus 637 VU 376/5-5 R4 2015-2015 | - | 41-044-65 R4 |
| Vaillant Ecotec Plus 637 VU 386/5-5 R 6 2017 Onwards | - | 41-694-27 R6 (0010021835) |
| Vaillant Ecotec Plus 824 VUW 246/3-5 2005-2012 | - | 47-044-31 |
| Vaillant Ecotec Plus 824 VUW 246/3-5 R1 2005-2011 | - | 47-044-31 R1 |
| Vaillant Ecotec Plus 824 VUW 246/3-5 R3 2011-2012 | - | 47-044-31 R2 |
| Vaillant Ecotec Plus 824 VUW 246/5-5 2012-2012 | - | 47-044-40 |
| Vaillant Ecotec Plus 824 VUW 246/5-5 R1 2012-2013 | - | 47-044-40 R1 |
| Vaillant Ecotec Plus 824 VUW 246/5-5 R2 2013-2015 | - | 47-044-40 R2 |
| Vaillant Ecotec Plus 824 VUW 246/5-5 R4 2015-2015 | - | 47-044-40 R4 |
| Vaillant Ecotec Plus 825 VUW 196/5-5 R6 2017 Onwards | - | 47-044-83 R6 (0010021823) |
| Vaillant Ecotec Plus 825 VUW 256/5-5 R4 2015 Onwards | - | 47-044-57 |
| Vaillant Ecotec Plus 831 VUW 316/3-5 2005-2013 | - | 47-044-32 |
| Vaillant Ecotec Plus 831 VUW 316/3-5 R1 2005-2011 | - | 47-044-32 R1 |
| Vaillant Ecotec Plus 831 VUW 316/3-5 R3 2011-2012 | - | 47-044-32 R3 |
| Vaillant Ecotec Plus 831 VUW 316/3-5 R5 2013-2013 | - | 47-044-32 R5 |
| Vaillant Ecotec Plus 831 VUW 316/5-5 2012-2012 LPG | - | 47-044-46 |
| Vaillant Ecotec Plus 831 VUW 316/5-5 2012-2012 NG | - | 47-044-41 |
| Vaillant Ecotec Plus 831 VUW 316/5-5 R1 2012-2013 LPG | - | 47-044-46 R1 |
| Vaillant Ecotec Plus 831 VUW 316/5-5 R1 2012-2013 NG | - | 47-044-41 R1 |
| Vaillant Ecotec Plus 831 VUW 316/5-5 R2 2013-2015 LPG | - | 47-044-46 R2 |
| Vaillant Ecotec Plus 831 VUW 316/5-5 R2 2013-2015 NG | - | 47-044-41 R2 |
| Vaillant Ecotec Plus 831 VUW 316/5-5 R4 2015-2015 LPG | - | 47-044-46 R4 |
| Vaillant Ecotec Plus 831 VUW 316/5-5 R4 2015-2015 NG | - | 47-044-41 R4 |
| Vaillant Ecotec Plus 832 VUW 246/5-5 R6 2017 Onwards LPG | - | 47-044-85 R6 (0010021825) |
| Vaillant Ecotec Plus 832 VUW 246/5-5 R6 2017 Onwards NG | - | 47-044-84 R6 (0010021824) |
| Vaillant Ecotec Plus 832 VUW 326/5-5 R4 2015 Onwards | - | 47-044-58 |
| Vaillant Ecotec Plus 835 VUW 306/5-5 R6 2017 Onwards | - | 47-044-82 R6 (0010021822) |
| Vaillant Ecotec Plus 835 VUW 356/5-5 R4 2015 Onwards | - | 47-044-53 |
| Vaillant Ecotec Plus 837 VUW 376/3-5 R1 2006-2011 | - | 47-044-33 R1 |
| Vaillant Ecotec Plus 837 VUW 376/3-5 R3 2011-2012 | - | 47-044-33 R3 |
| Vaillant Ecotec Plus 837 VUW 376/5-5 2012-2012 | - | 47-044-42 |
| Vaillant Ecotec Plus 837 VUW 376/5-5 R1 2012-2013 | - | 47-044-42 R1 |
| Vaillant Ecotec Plus 837 VUW 376/5-5 R2 2013-2014 | - | 47-044-42 R2 |
| Vaillant Ecotec Plus 837 VUW 376/5-5 R4 2014-2015 | - | 47-044-42 R4 |
| Vaillant Ecotec Plus 838 VUW 286/5-5 R6 2017 Onwards | - | 47-044-86 R6 (0010021826) |
| Vaillant Ecotec Plus 838 VUW 386/5-5 R4 2015 Onwards | - | 47-044-60 |
| Vaillant Ecotec Plus 937 VUI 376/3-5 2006-2012 | - | 47-044-39 |
| Vaillant Ecotec Plus 937 VUI 376/5-5 2012-2012 | - | 47-044-43 |
| Vaillant Ecotec Plus 937 VUI 376/5-5 R1 2012-2013 | - | 47-044-43 R1 |
| Vaillant Ecotec Plus 937 VUI 376/5-5 R2 2013-2014 | - | 47-044-43 R2 |
| Vaillant Ecotec Plus 937 VUI 376/5-5 R4 2014-2015 | - | 47-044-43 R4 |
| Vaillant Ecotec Plus 938 VUI 286/5-5 R6 2017 Onwards | - | 47-044-87 R6 (0010021827) |
| Vaillant Ecotec Plus 938 VUI 386/5-5 R4 2015 Onwards | - | 47-044-61 R4 |
| Vaillant Ecotec Pro 22 VU 226/5-3 A R4 (For Guernsey/Jersey Only) Current Production | - | 10018497 |
| Vaillant Ecotec Pro 22 VU 226/5-3 R4 (For Guernsey/Jersey Only) | - | 10015190 |
| Vaillant Ecotec Pro 24 VUW 246/5-3 2012-2012 | - | 47-044-44 |
| Vaillant Ecotec Pro 24 VUW 246/5-3 R1 2012-2013 | - | 47-044-44 R1 |
| Vaillant Ecotec Pro 24 VUW 246/5-3 R2 2013-2015 | - | 47-044-44 R2 |
| Vaillant Ecotec Pro 24 VUW 246/5-3 R4 (2015-2017) | - | 47-044-54 |
| Vaillant Ecotec Pro 24 VUW 246/5-3 R4 2015-2015 | - | 47-044-44 R4 |
| Vaillant Ecotec Pro 24 VUW 246/5-3 R6 2017 Onwards | - | 47-044-88 (0010021836) |
| Vaillant Ecotec Pro 28 VUW 286/5-3 2012-2012 LPG | - | 47-044-47 |
| Vaillant Ecotec Pro 28 VUW 286/5-3 2012-2012 NG | - | 47-044-45 |
| Vaillant Ecotec Pro 28 VUW 286/5-3 R1 2012-2013 LPG | - | 47-044-47 R1 |
| Vaillant Ecotec Pro 28 VUW 286/5-3 R1 2012-2013 NG | - | 47-044-45 R1 |
| Vaillant Ecotec Pro 28 VUW 286/5-3 R2 2013-2015 LPG | - | 47-044-47 R2 |
| Vaillant Ecotec Pro 28 VUW 286/5-3 R2 2013-2015 NG | - | 47-044-45 R2 |
| Vaillant Ecotec Pro 28 VUW 286/5-3 R4 2015 - 2017 | - | 47-044-55 (0010018495) |
| Vaillant Ecotec Pro 28 VUW 286/5-3 R4 2015 - 2017 LPG | - | 47-044-56 (0010018496) |
| Vaillant Ecotec Pro 28 VUW 286/5-3 R4 2015-2015 LPG | - | 47-044-47 R4 |
| Vaillant Ecotec Pro 28 VUW 286/5-3 R4 2015-2015 NG | - | 47-044-45 R4 |
| Vaillant Ecotec Pro 28 VUW 286/5-3 R6 2017 Onwards | - | 47-044-89 (0010021837) |
| Vaillant Ecotec Pro 28 VUW 286/5-3 R6 LPG 2017 Onwards | - | 47-044-90 (0010021838) |
| Vaillant Ecotec Pro 30 VUW 306/5-3 R4 (2015 Onwards) | - | 47-044-52 |
| Vaillant Exclusive 627 VU 256/5-7 | - | 41-694-02 |