Manufacturers Click Here

ACV Heatmaster TC Condensing Boiler (25kW to 85kW)

  • £4,351.00 Ex. VAT
Free Delivery Orders over £60 Unless Marked
100% Secure Shopping We ensure your payment is smooth


The heart of the HeatMaster® TC is ACV’s specially designed stainless steel heat exchanger, built on over 80 years experience in the manufacture of heating and hot water products.

Equipped with the ACVMax Control system.

Stainless steel self-cleaning heat exchanger

Total Condensing unit - condenses in both heating and hot water mode.

Can provide heating and hot water or as a stand alone hot water generator.

Can deliver exceptional peak and continuous volumes of hot water.

Stainless Steel domestic hot water tank.

Small footprint - Heating and hot water from one unit reduces plantroom space requirements.

Floor standing boiler with large volumes of primary water, ideal for existing heating systems.

Multiple units can be linked together for larger applications or back up

Can be installed along with our Prestige heat only boilers or Smartline cylinders to provide a perfect solution to your heating and hot water requirements.

A rated integral charging pump

Vented or unvented use - Mains systempak available.

Supplied with LPG kit for east on-site conversion

Tank-in-Tank Technology

Also available in 70-85-120kW.

Model    25TC 35TC 45TC 70TC  85TC 120TC 
Capacity (total) L 196 196 196 315 315 315
Heating surface DHW tank 2.2+0.6 2.2 + 0.6 2.2 + 0.6 3.4+0.9 3.4+0.9 3.4+0.9
Capacity (domestic hot water) L 96 96 96 190 190 190
Connection - DHW M 1"  1" 1" 1" 1" 1"
Max operating temperature °C 87 87 87 87 87 87
Max service pressure (DHW) Bar 8.6 8.6 8.6 8.6 8.6 8.6
Max service pressure heating (primary) Bar 3 3 3 3 3 3
Weight (empty) Kg 177 177 177 298 298 299
Dimesions Depth W/O Connections  mm 708 708 708 753 753 753
Dimensions Height W/O Connections  mm 1755 1755 1755 2170 2170 2170
Dimensions Width W/o Connection  mm 600 600 600 690 690 690
Hot Water Performance               
Peak flow at 40°C L/10' 361 408 451 716 783 900
Peak flow 1st hour at 40°C L/60' 1018 1328 1610 2455 2895 3620
Continuous flow at 40°C L/h 788 1104 1390 2087 2534 3402
Peak flow 1st hour at 45°C L/60' 865 1127 1366 2083 2456 3098
Continuous flow at 45°C L/h 676 946 1192 1789 2172 2928
Peak flow at 60°C L/10' 183 197 320 348 371 440
Peak flow 1st hour at 60°C L/60' 577 749 894 1391 1638 1847
Continuous flow at 60°C L/h 473 662 820 1252 1520 1754
Pre-heating time from 10 to 80°C  Min 35 26 23 27 24 23
Input max (heating) LCV Kw 25 35 45 69.9 85 115
Input max (heating) HCV Kw 27.8 38.9 50 77.6 94.4 127.7
Output power max (80/60°C) Kw 24.3 34.2 44.7 68 82.5 111.6
Output power min (80/60°C) Kw 4.9 6.8 8.8 209 20.5 24.3
Efficiency at 30% load (EN677) % 109 109 109 109 108 108
Connection - heating F 1" 1" 1" 1.1/2" 1.1/2" 1.1/2"
Connection gas Inch 3/4" M 3/4" M 3/4" M 3/4" M 3/4" M 3/4" M
Water pressure drop boiler at Δt = 20°C mbar 3 6 10 9 14 27
Gas flow rate (max output) m³/Hr 2.66 3.64 4.67 7.2 8.6 12
Gas flow rate G25 (max output) m³/Hr 2.96 4.23 5.6 8.3 10 14
Chimney connection mm 80/125 80/125 80/125 110/150 100/150 100/150
Voltage v 230 230 230 230 230 230
Protection IP   30 30 30 30 30 30
Electrical consumption w 95 110 126 210 266 327
NOx emissions max output mg/kwh 64 55 53 65 48 48
Showing our 1 review for ACV Heatmaster TC Condensing Boiler (25kW to 85kW). Write a review
Review Summary - 5 out of 5 based on 1 rating.
February 3, 2018 | Phil

Perfect for domestic as well as for industrial uses

JTM Plumbing Limited

Delivery Policy

Standard orders under £50 plus vat will incur a postage and packaging charge of £6 plus VAT for delivery within our UK Mainland delivery areas.

We offer a free delivery service on most orders over £50.00 plus vat* (Monday to Friday)

*Further delivery charges may apply for standard parcels being delivered to remote locations and offshore islands, these locations include/but are not restricted to UK Highlands and Islands, UK Non Mainland, Isle of Wight and Northern Ireland. Please refer to the checkout page for a list of affected postcodes.

JTM Plumbing is happy to offer a next working day delivery service for all parcels being sent providing the items are in stock. 95% of our parcels which are ordered by 3pm are dispatched via Courier for delivery the following working day. Certain outlying areas may take longer to arrive due to courier restrictions/timescales. 

Please call for prices regarding Long length to remote UK and all international orders prior to placing your order so we can advise on excess charges.


As we use 3rd party delivery agents JTM Plumbing we cannot guarantee that all deliveries will be the next working day. JTM will not be liable for any loss of income, loss of profits, loss of markets, loss of reputation, loss of customers, loss of use, loss of an opportunity even if we had knowledge that such damages or loss might arise or for any indirect, incidental, special or consequential damages or loss howsoever arising. 

If you need any more information regarding stock, postal charges, dispatch time or timed delivery options and cost please call us directly on 01325 488588 or email

Returns Policy

Your Right of Cancellation 

You have the right to cancel the contract at any time up to 14 days after you receive the goods under the Consumer Contracts Regulations. Please note that this policy has some limitations which are detailed below and does not apply to business customers. 

To exercise your right of cancellation you must give written notice to JTM Plumbing either via hand, post or email. Notification by telephone is not sufficient. 

Except in the case of faulty or misdescribed goods, if you exercise your right of cancellation after the goods have been delivered to you, you will be responsible for returning the goods to JTM Plumbing at your own cost. The goods must be returned to the address as shown on the returns form. You must take reasonable care to ensure the goods are not damaged or the box defaced in any way in the meantime or whilst in transit. In the case of faulty or misdescribed goods JTM Plumbing shall, after receiving notification, either collect the goods from you or ask you to return the goods at an agreed cost which JTM Plumbing will pay for. 

Once you have notified JTM Plumbing that you are cancelling the contract, JTM Plumbing will refund or re-credit you within 30 days for any sum that has been paid by you or debited from your credit card for the goods. If you have paid for excess postage charges for special deliveries these will not be refunded only our standard delivery cost if this was paid as an addition. 

Except in the case of faulty or misdescribed goods, if you do not return the goods as required, JTM Plumbing may charge you a sum not exceeding the direct costs of recovering the goods. 

You do not have the right to cancel the contract if the order is for consumable goods which, by their nature, cannot be returned, save where a fault is discovered which could not have been discovered otherwise than by unsealing the goods. 

If you are due a delivery you no longer require, but the goods are already with our courier and you refuse the delivery, a deduction of £6.00 will be made from your overall refund once the item is back with JTM Plumbing. This is due to our couriers charging a refusal charge.



We know that you will be pleased with your purchases from JTM Plumbing. However, there may be occasions when you will need to return items to us. 

In all instances of a return, please contact us first. You must receive a "Return Order Number" 


Items Damaged in Transit 

If any standard items were damaged in transit, we ask that you report it to us within 7 working days (please note that this is 48 hours for our business customers). If the items are visibly damaged on receipt, simply refuse the delivery. Items should be returned in their original packaging complete with all accessories and documentation. Once received back into our warehouse, we'll issue a replacement or full refund to you via your original payment method and reimburse your reasonable return carriage costs. 

Items Faulty on Arrival 

If your items are faulty on arrival, you have 28 calendar days in which to inform us of the fault (please note that for our business customers, this is 14 calendar days). Items should be returned in their original packaging complete with all accessories and documentation. Once we have verified the fault, we'll issue a replacement or full refund to you via your original payment method and reimburse your reasonable return carriage costs. We test returned items, and if a returned item is found not to be faulty by our technicians we will return the item to you, in this instance you will be liable for the return carriage. 


Items Faulty in Warranty Period 

If any of your purchases develop a fault, and it's more than 28 calendar days since receipt, then provided your item is within its warranty period, you are entitled to a warranty repair. In some cases, manufacturers provide a specialist full on-site service and/or telephone help facilities for your convenience which we recommend you use in order to correct the fault quickly. For business customers all warranty repairs after 28 days of receipt are referred directly to the manufacturer (unless otherwise stated) 


If you Change your Mind 

If you have simply changed your mind about any item ordered and you wish to return it, then in line with the Consumer Contracts Regulations you can do so provided you inform us of your decision within 14 days of receipt. The item must not be used and must be 'as new' when returned to us. Once you've informed us that you wish to return goods under the Consumer Contracts Regulations, you have a further 14 calendar days from the point of advising JTM to do so, at your own expense from the point of delivery. Once the item is received at JTM Plumbing, we'll issue a full refund for the product to your original payment method. Please note this policy has some limitations and does not apply to business customers(an example of which is items which are made to order). If you paid a standard delivery charge (for orders under £50) then this will also be refunded however we would not refund any non standard charges that you may have requested (e.g Timed deliveries)

If you wish to return any items outside of the standard Consumer Contracts Regulations then please contact JTM for details. Outside of this timescale we may have restocking charges that would be applied. Standard postage charges would not be refunded at this point.

Returns Address:

JTM Plumbing Ltd

Unit 1 Hannah Court Business Park

Faverdale North



Contact us for our Payment & Security policy

Product Information Model 1+ Quantity Qty
5652101 ACV Heatmaster (HMTC25) 25TC Condensing Boiler 25kW 1+ £4,351.00 Ex. VAT
5652101 £4,351.00 Ex. VAT
5652201 ACV Heatmaster (HMTC35) 35TC Condensing Boiler 35kW 1+ £4,773.00 Ex. VAT
5652201 £4,773.00 Ex. VAT
5652301 ACV Heatmaster (HMTC45) 45TC Condensing Boiler 45kW 1+ £5,394.00 Ex. VAT
5652301 £5,394.00 Ex. VAT
5652401 ACV Heatmaster (HMTC70) 70TC Condensing Boiler 70kW 1+ £6,460.00 Ex. VAT
5652401 £6,460.00 Ex. VAT
5652501 ACV Heatmaster (HMTC85) 85TC Condensing Boiler 85kW 1+ £7,372.00 Ex. VAT
5652501 £7,372.00 Ex. VAT
Total: £0.00 Ex. VAT