Assess First. Recommend Second.
Wall-mounted hot-water storage with an integrated 46-litre stainless-steel loading cylinder.
For qualifying models and registration packages. Annual servicing required.
Your written quotation confirms the cover included. Extensions may be chargeable. Badges in the product image are subject to these conditions.
Up to 10 years when registered via VPlus for the advertised current package. Chargeable 10/12-year options appear in the homeowner table; any further extension must be confirmed for the exact model. Subject to current manufacturer terms, model and installation eligibility, installer registration/status, correct commissioning and annual servicing. Registration deadlines and any qualifying controls, accessories or system-water requirements must be confirmed. The written quotation confirms actual cover; maximum cover is not automatic.
Manufacturer warranty informationWall-mounted hot-water storage with an integrated 46-litre stainless-steel loading cylinder.
Natural-gas figures. CH at 80/60°C; condensing CH at 50/30°C. Output label, heating maximum and hot-water rating describe different functions.
| Model / output option | Heating at 80/60°C | Heating at 50/30°C | Hot-water output | Flow at 35°C rise |
|---|---|---|---|---|
| 25 kW option · ZK06239 | 2.9–23 kW | 25 kW | 30.3 kW | 17 l/min |
| 32 kW option · ZK06240 | 2.9–29.3 kW | 32 kW | 33.9 kW | 18.1 l/min |
Current brochure identifies B1LG. Storage flow figures are not a promise of sustained simultaneous shower performance.
Installation access, wall loading and the complete filled weight require the selected manual.
Integrated storage provides a different hot-water arrangement from the instantaneous 100-W. The current B1LG brochure documents WiFi connectivity and automatic Lambda Pro combustion control.
Consider stored-water delivery, refill/recovery and available wall space together. The larger and heavier appliance still depends on measured incoming water supply.
Up to 10 years when registered via VPlus for the advertised current package. Chargeable 10/12-year options appear in the homeowner table; any further extension must be confirmed for the exact model. Subject to current manufacturer terms, model and installation eligibility, installer registration/status, correct commissioning and annual servicing. Registration deadlines and any qualifying controls, accessories or system-water requirements must be confirmed. The written quotation confirms actual cover; maximum cover is not automatic.
Manufacturer model and warranty information · Registration terms and warranty tableCompatible Viessmann controls and ViCare connectivity depend on the exact appliance generation, WiFi version, accessories and system design. Confirm the selected controls, wiring and available functions during assessment.
Casing: 950 mm high × 600 mm wide × 500 mm deep. Flue, pipework and installation/service clearances are additional and require the selected model manual.
The Boiler Finder can link to this family as an initial research option. It does not rank manufacturers, select a precise kW variant or replace a heating survey.
Combi arrangement guidanceRead the rating basis alongside the table. Heating, hot-water output and storage delivery describe different duties. Boiler labels and bedroom counts are not substitutes for calculated heat loss and measured water supply.
Up to 10 years when registered via VPlus for the advertised current package. Chargeable 10/12-year options appear in the homeowner table; any further extension must be confirmed for the exact model. Subject to current manufacturer terms, model and installation eligibility, installer registration/status, correct commissioning and annual servicing. Registration deadlines and any qualifying controls, accessories or system-water requirements must be confirmed. The written quotation confirms actual cover; maximum cover is not automatic.
Consider stored-water delivery, refill/recovery and available wall space together. The larger and heavier appliance still depends on measured incoming water supply. Final specification requires professional assessment.
UK directory and linked manufacturer literature checked 2 October 2026. Exact generation, availability and current warranty entitlement are reconfirmed before quotation. Where manufacturer documents conflict, the chosen rating basis and remaining checks are stated above.
The installed price for your selected boiler is confirmed after assessment. The quotation covers the appliance, controls, flue, system preparation and any required pipework. A conversion or relocation can have a different scope from a straightforward replacement.
New boiler installations from £1,790 inc. VAT apply to a qualifying standard, straightforward replacement: one bathroom, fewer than 10 radiators and a standard horizontal flue, subject to survey. Specification and warranty selection affect the final cost. This is a general starting offer and is not a price for every model in this catalogue.
Read the starting-package conditions0% options over 3, 6, 9 or 12 months through Humm Group Limited, subject to application, affordability, eligibility, approval and provider terms. Any applicable deposit, fees and repayment conditions are confirmed during your enquiry/application. Acceptance is not guaranteed.
Finance terms and chargesTwo free annual services and a Hive Mini are available on qualifying installations only. Every model is considered under the qualification rules; inclusion in this catalogue does not confirm eligibility. Ask us to confirm the offer in your quotation.
Ask about Care+ eligibilityPlan the maintenance your appliance requires and keep its service records. If you are considering replacement because of a fault, diagnosis can help establish whether repair is a suitable option first.
Boiler servicing · Repair advicePrice confirmed following assessment for this configuration. The general New boiler installations from £1,790 inc. VAT offer does not apply to every model or property.
From or indicative prices remain provisional. SwiftHeat issues a written fixed quotation for the agreed scope after the appropriate property and installation assessment, technical checks and warranty-package verification. Remote information gathering may be suitable initially; a home survey is required where the necessary checks cannot be completed remotely.
We assess heat loss, heating and hot-water requirements, water supply, controls and installation access before recommending an appliance. Bedroom count or a catalogue model number alone cannot establish the right boiler.
Gas Safe registration 978273 · Serving Cardiff, South Wales and across the UK.
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