If you’re looking for honest Biasi boiler reviews, this guide offers essential insights into the Italian brand’s affordable heating options for UK homes and rentals. From efficiency and models to pricing and user feedback, we’ll help homeowners and landlords evaluate if Biasi suits their central heating needs.
Biasi Boiler Reviews: At A Glance
Biasi boilers are known for their budget-friendly Italian design, providing reliable gas heating solutions with a focus on compactness and value for UK properties. Here’s a summary table of key attributes to give you a quick overview.
| Aspect | Details |
| Founded | 1938 |
| Origin | Italy (BSG Caldaie a Gas SpA; UK subsidiary since 1990) |
| Awards | ISO certified for quality; recognised for affordability and efficiency in budget segment; no major Which? Best Buy awards |
| Efficiency | Up to 90% (ErP A-rated for most condensing models; some B-rated at 89%) |
| Boiler Types | Combi (Advance Plus 7, Inovia), System (Advance Plus 7 System, Inovia System), Regular/Conventional (Advance OV) |
| Estimated Prices (Supply Only) | £625–£1,200 depending on type and output |
| Guarantee | 5–7 years model-dependent; requires annual servicing and registration |
| Pros | Affordable pricing, compact for small spaces, good hot water flow in combis, low NOx emissions |
| Cons | Mixed reliability reports, potential parts delays, lower Which? satisfaction scores |
| Maintenance and Servicing | Annual Gas Safe engineer service mandatory for guarantee; simple access for checks; focus on clean installation to avoid issues |
Who Are Biasi: A Brief Background
Biasi originated in Italy in 1938 when Leopoldo Biasi founded a small thermomechanical company focused on home heating solutions. By the 1940s, it expanded into manufacturing residential boilers, and in 1986, began producing gas models.
The UK arm, Biasi UK Ltd, was established in 1990 to bring these efficient, affordable products to British households, emphasising compact designs for modern properties. Today, as part of BSG Caldaie a Gas SpA, Biasi prioritises value-driven condensing technology for sustainable heating.
Are Biasi Boilers Worth It?
Biasi boilers are worth it for budget-conscious users seeking compact, efficient heating without premium pricing, though they may not match top brands in long-term reliability. They provide solid value for smaller UK homes or rentals where affordability is key.
Pros and Cons of Biasi Boilers
Pros:
- Competitive pricing makes them accessible for cost-effective upgrades.
- Compact designs ideal for space-limited properties like flats or terraced houses.
- Good efficiency ratings (up to 90%) help reduce energy bills and emissions.
- Strong hot water performance in combi models for everyday needs.
- Generous guarantees (5-7 years) with simple maintenance requirements.
Cons:
- Mixed user reviews highlight occasional reliability issues and breakdowns.
- Lower Which? satisfaction score (68%, three stars) compared to premium rivals.
- Potential delays in sourcing parts due to lesser UK market presence.
Exploring options? Request a new boiler quote from Boilers 2 Go to find affordable, reliable fits for your home.
How Efficient Are Biasi Boilers?
Biasi boilers are efficient, with most condensing models achieving up to 90% ErP A-rated performance, minimising fuel waste and potentially lowering bills by recovering heat from flue gases. Some entry-level units rate B at 89%, still offering good savings for eco-conscious UK setups.
Biasi Boiler Range
Biasi’s boiler range caters to various UK home sizes with gas-powered combi, system, and regular types, all featuring condensing technology for enhanced efficiency and low emissions. These models emphasise affordability and compactness, suitable for diverse property needs.
Biasi Combi Boiler Range
Biasi combi boilers integrate heating and hot water in one unit, eliminating cylinders for space efficiency in smaller homes. The Advance Plus 7 series (25kW, 30kW, 35kW) offers strong flow rates up to 13.3 l/min, with built-in frost protection and easy controls.
Inovia combi models (25kW, 30kW, 35kW) add adaptive gas valves for optimised combustion, ideal for one to two-bathroom setups.
Biasi System Boiler Range
Biasi system boilers connect to external cylinders for higher hot water demands in multi-bathroom properties. The Advance Plus 7 System range (25kW, 32kW) includes integrated expansion vessels and pumps for seamless installation.
Inovia System options (25kW, 30kW) provide reliable performance with low NOx outputs, suiting larger rentals or family homes.
Biasi Conventional Boiler Range
Biasi conventional boilers, or heat-only, pair with tanks and cylinders for traditional systems in older or larger UK buildings. The Advance OV series (15kW, 18kW, 24kW) delivers straightforward heating with A-rated efficiency where possible, featuring simple integration and weather compensation compatibility.
Biasi Boiler Most Popular Models
Biasi’s most popular models are favored for their value, combining efficiency and output for common UK household requirements, from compact combis to versatile regulars. These include options for quick hot water and steady heating. The table below outlines top selections.
| Model | Type | Output (kW) | Efficiency | Key Features |
| Advance Plus 7 25kW | Combi | 19.5 | 90% | Compact, high flow rate, frost protection |
| Advance Plus 7 30kW | Combi | 24.4 | 90% | Adaptive valve, low emissions, easy install |
| Advance Plus 7 35kW | Combi | 29.5 | 90% | For larger homes, strong performance |
| Advance OV 18kW | Regular | 18 | 88.4% | Simple design, suitable for traditional systems |
Biasi Boiler Costs
Biasi boiler costs position them as an economical choice, with supply prices reflecting their budget appeal while offering solid features. Installation adds £800–£1,300 typically, varying by property complexity. The table details estimates across ranges.
| Range/Model | Type | Estimated Supply Cost (£) |
| Advance Plus 7 25–35kW | Combi | 650–725 |
| Inovia 25–35kW | Combi | 640–750 |
| Advance Plus 7 25–32kW | System | 635–700 |
| Inovia 25–30kW | System | 600–650 |
| Advance OV 15–24kW | Regular/Conventional | 625–675 |
Biasi Boiler Honours and Industry Praise
Biasi has earned praise for its affordable, efficient designs, including ISO certifications for quality management and recognition in budget segments for low-NOx technology. While not topping premium awards, the brand’s heritage in condensing innovation has been noted in industry for value-driven performance.
Trustpilot Reviews for Biasi Boilers
Trustpilot reviews for Biasi boilers average 3.8/5 from 588 users, with 62% giving five stars for affordability and efficiency, though 24% report one-star issues like breakdowns. Overall, feedback highlights cost savings but notes variability in reliability.
Biasi Boiler Guarantee: What You Can Expect
Biasi boiler guarantees offer 5-7 years of coverage for parts and labour, depending on the model, requiring annual Gas Safe servicing and prompt registration. This provides reassurance for UK installations, with extensions available through approved schemes.
Are Biasi Boilers Right For You?
Biasi boilers are right for you if affordability and compactness align with your heating priorities. Here’s how to assess suitability.
Choose Biasi boilers if…
- Budget is a top concern for a reliable entry-level system in a small to medium home.
- You need space-saving designs for flats or terraced properties as a landlord.
- Efficiency up to 90% suits your eco goals without premium costs.
- Shorter guarantees (5-7 years) are acceptable with regular maintenance.
Don’t choose Biasi boilers if…
- You prioritise top-tier reliability and higher Which? scores from established brands.
- Your area lacks easy access to parts or specialised installers.
- Larger properties demand ultra-high outputs or advanced features.
Looking for a New Boiler Quote?
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FAQs
How Does Biasi’s Adaptive Gas Valve Enhance Performance?
Biasi’s adaptive gas valve automatically adjusts fuel mix for optimal combustion, improving efficiency by up to 5% in varying conditions and reducing wear in UK climates.
What Smart Thermostat Compatibility Do Biasi Boilers Offer?
Biasi models integrate with OpenTherm thermostats like Nest or Hive, enabling remote app control for zoning and scheduling to boost energy savings in multi-room setups.
Can Biasi Boilers Support Solar Integration?
Yes, select Biasi combi and system boilers accommodate solar thermal kits, allowing preheated water input to cut gas reliance and align with renewable incentives.
How Do Biasi Boilers Fare in Hard Water Regions?
Biasi’s stainless steel heat exchangers resist limescale in hard water areas like the Midlands, but adding a magnetic filter during install prevents buildup for longevity.
What Diagnostic Features Aid Biasi Boiler Troubleshooting?
Biasi units include LED error codes and optional app connectivity for real-time alerts, helping users identify issues like pressure drops before calling engineers.
I’m Penny North, a home energy heating expert. My mission is to demystify new boilers and complex heating systems to help you achieve a warm, cosy home with lower energy bills and a smaller environmental footprint.