![At NationalBoiler.co.uk, we make buying and installing a new boiler simple, affordable, and stress-free. ✅ What We Offer: ✔ Top-brand boilers (Worcester Bosch, Vaillant, Ideal & more) ✔ Expert installation by Gas Safe engineers ✔ Competitive pricing with 0% finance options ✔ 10-year warranties for peace of mind ✔ Nationwide coverage (excluding Ireland) ✅ Why We’re the Smart Choice: ✔ 10+ years of trusted service – We know boilers inside out ✔ No pushy sales – Just honest, expert advice ✔ Quick, clean installations – Minimal disruption to your home ✔ Aftercare support – We’re here long after installation 🔥 Upgrade your heating the smart way – with NationalBoiler.co.uk! 🔧 Our Boiler Services ✔ Boiler Repairs 24/7 emergency call-outs – No one should be left in the cold! Gas Safe certified engineers – Fully qualified & trustworthy Fixed-price diagnostics – No hidden fees All makes & models covered – From Worcester Bosch to Ideal ✔ Boiler Servicing Annual safety checks – Prevent breakdowns & save money Manufacturer warranty protection – Keep your guarantee valid Thorough 12-point inspection – We check everything! Energy efficiency advice – Lower your bills ✔ Landlord Certificates CP12 Gas Safety Checks – Legally compliant for rentals Fast certification – Same-day reports 💡 Why Choose Us for Repairs & Servicing? ✅ Same-day availability – We know emergencies can’t wait ✅ Transparent pricing – No nasty surprises ✅ First-time fix guarantee – We get it right the first time ✅ Trusted by homeowners & landlords – 1,000+ 5-star reviews "Called for an emergency repair – engineer arrived within 2 hours and fixed it straight away!" ⭐⭐⭐⭐⭐ – James R., London 📅 Book Your Service or Repair Today Keep your boiler in top condition with National Boiler’s expert care: [📞 Call for Emergency Repairs 07932 84 2006] [📅 Book a Service Online] [🏠 Landlord? Get Your CP12 Certificate] Gas Safe Registered | 10+ Years Experience | Nationwide Coverage Don’t wait for a breakdown – schedule your boiler service today! 🔧🔥](https://nationalboiler.co.uk/wp-content/uploads/2025/02/National_Boiler-Combi_Boiler-System_Boiler-Regular_Boiler-Back_Boiler-Free_delivery_in_UK-Boiler_Installation-Plumbing_Heating_Installation_Repair_Services.png)
Large House Boiler
Showing all 12 results
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Worcester Bosch Greenstar 30i System Boiler LPG
Original price was: £2,765.00.£2,745.00Current price is: £2,745.00. Add to basket🔥 Recommended | ✅ Free delivery | ✅ Includes Installation
🏡 Perfect For:
✅ 4-5 bedroom homes 🏠
✅ Homes with 2-3 bathrooms 🚿🚿🚿
✅ Busy family households 👨👩👧👦👦
✅ High hot water demand 💦 -
Worcester Bosch Greenstar 30i System Boiler NG
Original price was: £2,765.00.£2,700.00Current price is: £2,700.00. Add to basket🔥 Recommended | ✅ Free delivery | ✅ Includes Installation
🏡 Perfect For:✅ 4+ bedroom homes 🏠
✅ Homes with 2+ bathrooms 🚿🚿
✅ Larger families 👨👩👧👦👦
✅ High hot water demand 🔥 -
Worcester Bosch Greenstar 36cdi Compact Combi Boiler LPG
Original price was: £3,250.00.£3,200.00Current price is: £3,200.00. Add to basket🔥 Good Value | ✅ Free delivery | ✅ Includes Installation
🏡 Perfect For:
✅ 4+ bedroom homes 🏠
✅ Homes with 2-3 bathrooms 🚿🚿🚿
✅ Busy family life 👨👩👧👦
✅ High hot water demand 💦 -
Worcester Bosch Greenstar 36cdi Compact Combi Boiler NG
Original price was: £3,250.00.£3,200.00Current price is: £3,200.00. Add to basket🔥 Good Value | ✅ Free delivery | ✅ Includes Installation
🏡 Perfect For:✅ 4+ bedroom homes 🏠
✅ Homes with 2-3 bathrooms 🚿🚿🚿
✅ Large families 👨👩👧👦👦
✅ High hot water demand 🔥 -
Worcester Bosch Greenstar 4000 24kW System Boiler NG
Original price was: £2,648.00.£2,620.00Current price is: £2,620.00. Add to basket🔥 Recommended | ✅ Free delivery | ✅ Includes Installation
🏡 Perfect For:
✅ 4-5 bedroom homes 🏠
✅ Homes with 2+ bathrooms 🚿🚿
✅ Busy family life 👨👩👧👦
✅ High hot water demand 💦 -
Worcester Bosch Greenstar 8000+ 30kW System Boiler LPG
Original price was: £2,960.00.£2,900.00Current price is: £2,900.00. Add to basket🔥 Premium Boiler | ✅ Free delivery | ✅ Includes Installation
🏡 Perfect For:
✅ 4-5 bedroom family homes 🏠
✅ Homes with 2-3 bathrooms 🚿🚿🚿
✅ Large families 👨👩👧👦👦
✅ Properties with high hot water demand 💦 -
Worcester Bosch Greenstar 8000+ 36kW Combi Boiler LPG
Original price was: £3,309.00.£3,279.00Current price is: £3,279.00. Add to basket🔥 Premium Boiler | ✅ Free delivery | ✅ Includes Installation
🔥 Why You’ll Love It:
✅ Powerful Performance – Delivers a strong, steady flow of hot water (even when running multiple showers)
✅ Energy Efficient – Saves you money on bills (94% efficiency, A-rated)
✅ Compact & Space-Saving – No bulky water tank needed, freeing up storage space
✅ Whisper-Quiet – Runs quieter than a fridge (42dB)
✅ 12-Year Warranty* – One of the longest warranties on the market (*with professional installation)
✅ Smart Heating Ready – Works with the Worcester Wave thermostat for easy control -
Worcester Bosch Greenstar 8000+ 36kW Combi Boiler NG
Original price was: £3,309.00.£3,279.00Current price is: £3,279.00. Add to basket🔥 Premium Boiler | ✅ Free delivery | ✅ Includes Installation
🔥 Why You’ll Love It:
✅ Powerful Performance – Delivers a strong, steady flow of hot water (even when running multiple showers)
✅ Energy Efficient – Saves you money on bills (94% efficiency, A-rated)
✅ Compact & Space-Saving – No bulky water tank needed, freeing up storage space
✅ Whisper-Quiet – Runs quieter than a fridge (42dB)
✅ 12-Year Warranty* – One of the longest warranties on the market (*with professional installation)
✅ Smart Heating Ready – Works with the Worcester Wave thermostat for easy control -
Worcester Bosch Greenstar 8000+ Style 32kW Combi Boiler NG
£3,185.00 Add to basket🔥 Premium Boiler | ✅ Free delivery | ✅ Includes Installation
✅Output: 32kW (heating & hot water)
✅Type: Combi boiler (no cylinder needed)
✅Efficiency: 94% ErP (A-rated)
✅Hot Water Flow Rate: ~14.5 litres/min @ 35°C rise
✅Dimensions: 780mm H x 450mm W x 365mm D
✅Warranty: Up to 12 years (with professional installation)
✅Smart Ready: Pre-configured for Wave smart thermostat
✅Noise Level: 43dB (QuietMark certified)
✅Design: Matte black finish with full-colour LCD touchscreen -
Worcester Bosch Greenstar 8000+ Style 36kW Combi Boiler
£3,519.00 Add to basket🔥 Premium Boiler | ✅ Free delivery | ✅ Includes Installation
Why You’ll Love This Boiler
✅ Looks as good as it works – the stylish black design blends seamlessly into your home
✅ Simple touchscreen controls – adjust temperatures with just a tap
✅ Smart ready – control heating from bed or the office
✅ Cleans itself – saving you maintenance hassle
✅ Built for the future – ready for new eco-friendly fuels -
Worcester Bosch Greenstar 8000+30kW System Boiler NG
Original price was: £2,960.00.£2,900.00Current price is: £2,900.00. Add to basket🔥 Premium Boiler | ✅ Free delivery | ✅ Includes Installation
🏡 Perfect For:✅ 4-5 bedroom homes 🏠
✅ 2-3 bathroom properties 🚿🚿🚿
✅ Large families 👨👩👧👦👦
✅ Homes with high hot water demand 💦 -
Worcester Greenstar Ri 30kW Regular Boiler NG
Original price was: £2,585.00.£2,565.00Current price is: £2,565.00. Add to basket🔥 Recommended | ✅ Free delivery | ✅ Includes Installation
🏡 Perfect For:
✅ 4-5 bedroom homes 🏠
✅ Properties with 2+ bathrooms 🚿🚿
✅ Older heating systems (replaces back boilers)
✅ Homes needing high-capacity hot water storage
