Navien NCB300 28kW Gas Combi Boiler Full Package
Navien NCB300 28kW Gas Combi Boiler Full Package
(Approx. 3-5 working days)
Do you have a MacBlair trade account?
The Navien NCB300 is a wall-mounted condensing gas combi boiler designed for central heating and domestic hot water. It operates on natural gas and includes an LPG conversion kit for installation flexibility.
This model delivers a 28kW output for hot water and a flow rate of 11.5 litres per minute at a 35°C rise. It achieves an ErP A efficiency rating of 93% and meets NOx Class 6 standards for low emissions. The compact dimensions (680mm height, 395mm width, 285mm depth) allow installation inside a standard kitchen cupboard.
The full package includes the boiler, horizontal flue kit, magnetic filter, and system inhibitor. It features stainless steel heat exchangers for corrosion resistance, IPX4 water ingress protection, and hydrogen-ready technology for a 20% blend. Compatible with smart controls and OpenTherm protocols for enhanced efficiency.
- Heat output: 28kW for heating and hot water
- Hot water flow rate: 11.5 L/min at 35°C rise
- Dimensions: 680mm (H) x 395mm (W) x 285mm (D)
- Stainless steel heat exchangers for durability
- ErP A efficiency rating with NOx Class 6 compliance
| Brand | Navien |
|---|---|
| Width | 395 mm |
| Depth | 285 mm |
| Flow Rate | 16.8 l/min |
| Flue Included | Yes |
| Fuel Type | Gas |
| Heating Energy Rating | A |
| Heat Input Range | 24.7/4.3 |
| Heat Output Range | 28.0/4.3kW |
| Height | 680 mm |
| Model Name / No | NCB300-28K |
| Weight | 29 kg |
| Sold Per | Pack |
| Length Of Warranty | 5 Years |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
The Navien NCB300 is a wall-mounted condensing gas combi boiler designed for central heating and domestic hot water. It operates on natural gas and includes an LPG conversion kit for installation flexibility.
This model delivers a 28kW output for hot water and a flow rate of 11.5 litres per minute at a 35°C rise. It achieves an ErP A efficiency rating of 93% and meets NOx Class 6 standards for low emissions. The compact dimensions (680mm height, 395mm width, 285mm depth) allow installation inside a standard kitchen cupboard.
The full package includes the boiler, horizontal flue kit, magnetic filter, and system inhibitor. It features stainless steel heat exchangers for corrosion resistance, IPX4 water ingress protection, and hydrogen-ready technology for a 20% blend. Compatible with smart controls and OpenTherm protocols for enhanced efficiency.
- Heat output: 28kW for heating and hot water
- Hot water flow rate: 11.5 L/min at 35°C rise
- Dimensions: 680mm (H) x 395mm (W) x 285mm (D)
- Stainless steel heat exchangers for durability
- ErP A efficiency rating with NOx Class 6 compliance
| Brand | Navien |
|---|---|
| Width | 395 mm |
| Depth | 285 mm |
| Flow Rate | 16.8 l/min |
| Flue Included | Yes |
| Fuel Type | Gas |
| Heating Energy Rating | A |
| Heat Input Range | 24.7/4.3 |
| Heat Output Range | 28.0/4.3kW |
| Height | 680 mm |
| Model Name / No | NCB300-28K |
| Weight | 29 kg |
| Sold Per | Pack |
| Length Of Warranty | 5 Years |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
-
Worcester Greenstar 4000 30kW Combi Gas Boiler PackageAvailable for deliveryAvailable for click & collect from
Available for click & collect
from Change BranchAvailable for delivery Extended lead times applyAvailable to order for collection from Change Branch Extended lead times applyOut of stock for delivery
Out of stock for click & collect Change Branch
£1,165.82 Ex VAT£1,398.98 Inc VAT£1,165.82 Ex VAT£1,398.98Inc VAT -
Navien NCB500 32kW Gas Combi Boiler Full PackageAvailable for deliveryAvailable for click & collect from
Available for click & collect
from Change BranchAvailable for delivery Extended lead times applyAvailable to order for collection from Change Branch Extended lead times applyOut of stock for delivery
Out of stock for click & collect Change Branch
£884.99 Ex VAT£1,061.99 Inc VAT£884.99 Ex VAT£1,061.99Inc VAT -
Ideal Heating Logic Max Gas Combi Boiler 30kWAvailable for deliveryAvailable for click & collect from
Available for click & collect
from Change BranchAvailable for delivery Extended lead times applyAvailable to order for collection from Change Branch Extended lead times applyOut of stock for delivery
Out of stock for click & collect Change Branch
£925.00 Ex VAT£1,110.00 Inc VAT£925.00 Ex VAT£1,110.00Inc VAT -
Navien NCB700 42kW Gas Combi BoilerAvailable for deliveryAvailable for click & collect from
Available for click & collect
from Change BranchAvailable for delivery Extended lead times applyAvailable to order for collection from Change Branch Extended lead times applyOut of stock for delivery
Out of stock for click & collect Change Branch
£1,299.99 Ex VAT£1,559.99 Inc VAT£1,299.99 Ex VAT£1,559.99Inc VAT -
Navien NCB500 37kW Gas Combi BoilerAvailable for deliveryAvailable for click & collect from
Available for click & collect
from Change BranchAvailable for delivery Extended lead times applyAvailable to order for collection from Change Branch Extended lead times applyOut of stock for delivery
Out of stock for click & collect Change Branch
£920.00 Ex VAT£1,104.00 Inc VAT£920.00 Ex VAT£1,104.00Inc VAT