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Grant Vortex Boiler House VORTBH90120BSRED 26-36kW Condensing Oil Boiler

Product Code
46GRA017

Please note. All boilers must be installed by OFTEC  registered & approved fitters. 

Flu Exhaust Kits are available for your Boiler and are purchased separately. 

€1,929.95 €1,569.07

Energy Rating A

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The Grant Vortex Boiler House VORTBH90120BSRED 26-36kW Condensing Oil Boiler is a heat-only condensing oil boiler designed for boiler house or garage installation. Its 26–36kW output range suits correctly sized domestic heating systems with a separate hot-water cylinder.
The boiler uses Grant's condensing heat-exchanger technology and a Riello RDB2.2 burner to deliver A-rated heating performance. Its compact casing and front service access support practical installation and maintenance.
This boiler must be selected from a professional heat-loss calculation and installed, commissioned and serviced by a suitably qualified oil-heating engineer.
 
Key Features
  • SEAI HARP A-rated condensing performance supports efficient heating.
  • Riello pressure-jet burner provides reliable oil-fired operation.
  • Multiple Grant EZ-Fit flue options support flexible installation.
  • Front service access simplifies annual maintenance.
  • Grant Vortex condensing heat exchanger supports high-efficiency operation.
  • Factory-fitted red insulated jacket suits boiler-house installation.
 
Technical Information
  • Model code: VORTBH90120BSRED
  • Product range: Vortex Boiler House
  • Product type: Heat-only condensing oil boiler
  • Nominal output range: 26–36kW
  • Set output: 31kW
  • Maximum output: 36kW
  • Heating efficiency: 97%
  • ErP heating energy rating: A
  • NOx emissions: Compliant
  • Burner: Riello RDB2.2
  • Fuel: Class C2 kerosene
  • Installation location: Boiler house or garage
  • Dimensions H x W x D: 705 x 460 x 600mm
  • Product weight: 133kg
  • Heating system: Fully pumped central heating with indirect domestic hot-water cylinder
  • System compatibility: Open-vented or sealed system, subject to installation design
  • Approvals: OFTEC standard and applicable EC directives
  • Guarantee: 1-year manufacturer warranty with 5-year heat-exchanger guarantee, subject to terms
  • Flue compatibility: Grant EZ-Fit balanced and conventional flue systems
 
Please Note
  • Professional installation, commissioning and annual servicing are required.
  • Confirm the required heat output, flue arrangement, oil supply, condensate route, controls and hydraulic design before purchase.
  • A separate hot-water cylinder and system controls are required where domestic hot water is needed.
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More Information
Barcode5391528191109
Energy RatingA
BrandGrant
Weight (kg)125.0000
Provided byTJ O'Mahony
Delivery Ruleextra large

Last update: 18 August 2026

We offer reliable delivery services throughout the Republic of Ireland, with straightforward delivery charges for both trade and DIY customers. Delivery options are confirmed at checkout based on your order and delivery Eircode.

Delivery Charges & Delivery Times

Delivery TypeDelivery AreaDelivery ChargeDelivery Time
Small ItemsRepublic of Ireland€9.993–4 working days
Large & Heavy*Standard delivery area€29.995–7 working days
Extra Large*Standard delivery area€50.005–7 working days
Paint 5L or less**Standard delivery area€19.995–7 working days

Small Items

Delivery area
Republic of Ireland
Charge
€9.99
Delivery time
3–4 working days

Large & Heavy*

Delivery area
Standard delivery area
Charge
€29.99
Delivery time
5–7 working days

Extra Large*

Delivery area
Standard delivery area
Charge
€50.00
Delivery time
5–7 working days

Paint 5L or less**

Delivery area
Standard delivery area
Charge
€19.99
Delivery time
5–7 working days

*Standard delivery policy. Promotional delivery rates may apply during campaigns.

Additional Information

  • FREE delivery on eligible Small Items and Large & Heavy orders over €1,499, within the standard delivery area only.
  • Special Order and Catalogue Products require an additional 5 working days.
  • FREE collection of old appliances is available through WEEE Ireland when purchasing qualifying large appliances.
  • FREE Click & Collect is available for items in stock at your selected branch.
  • Large & Heavy and Extra Large items are available within our standard delivery area only.
  • Restricted delivery areas (Large & Heavy and Extra Large items): A75, A81, A91, F12, F23, F26, F28, F31, F35, F42, F45, F52, F56, F91, F92, F93, F94, H12, H14, H16, H18, H23, H71, N39, N41, P12, P14, P17, P24, P25, P31, P32, P36, P43, P47, P51, P72, P75, P81, P85, T12, T23, T34, T45, T56, V15, V23, V31, V92, V93.
  • Paint delivery Paint in tin cans 5L or less is available for delivery. Larger sizes and paint supplied in plastic buckets are available for Click & Collect only.
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30-Day Returns

TJ O'Mahony offers a 30-day returns policy on eligible unused products, giving you additional time beyond the statutory 14-day cooling-off period applicable to most online consumer purchases.

Eligible products can be returned for a refund or exchange within 30 days of delivery or collection, provided they are unused, in their original and re-saleable condition, complete with all supplied parts and accessories, and accompanied by proof of purchase.

Please note: Return restrictions apply to certain products, including Mixed Paint, certain Bagged Building Products, Solid Fuel, Special Order, Non-Stock and Catalogued Products. Your statutory rights in relation to faulty, damaged, incorrectly supplied or non-conforming goods are not affected.

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