Chimney & Wood Burner Blog
Practical, NZ-specific articles on chimney sweeping, wood burner safety, maintenance, and council regulations.
Chimney Cleaning
What Is Creosote? The 3 Stages Building Up in Your NZ Chimney
Creosote is the tar-like residue from burning wood at low temperatures — and the single biggest cause of chimney fires in NZ. This guide explains the three stages (fluffy soot, hardened tar, glazed coal-tar), why NZ wood burners produce more creosote than UK or US equivalents, how fast each stage develops, and what each level costs to remove. Covers firewood choices, burning style, prevention, and when to inspect.
Chimney Cleaning
Can You Sweep Your Own Chimney in NZ? DIY vs Professional
DIY chimney sweeping is legal in NZ but rarely the right call once you account for time, equipment cost, missed-issue risk, and insurance documentation. This guide walks through DIY kits available at Bunnings and Mitre 10, what creosote sticks really do, when DIY is reasonable, and when to absolutely call a professional.
Chimney Cleaning
What Happens During a Professional Chimney Sweep? (NZ Process Guide)
A professional NZ chimney sweep is a methodical 30–60 minute, seven-step service: floor protection, inspection, mechanical brushing, HEPA vacuum capture, optional CCTV, draught test, and certificate. This guide walks through each step, the tools used, and what to expect from your safety report.
Chimney Cleaning
How Often Should You Get Your Chimney Swept in NZ?
Every NZ chimney should be swept at least once a year. FENZ, the NZHHA, and most insurance companies all agree. Heavy users need bi-annual sweeping. This guide covers frequency recommendations, insurance requirements, costs, and NZ-specific data.
Fuel & Performance
Best Firewood in NZ Ranked — Species Comparison With Burn Times, Heat Output, and Prices
Mānuka is the best-performing firewood in New Zealand — it burns the longest, produces the most heat, and creates the least creosote. But at $200+ per cubic metre, it's expensive and hard to source in bulk. For most NZ homeowners, a "hot mix" of 50% pine and 50% hardwood offers the best balance of ignition speed, heat output, burn time, and cost. The single most important factor isn't the species — it's moisture content.
Landlord Compliance
Landlord Responsibilities for Chimney Maintenance in NZ
NZ landlords are legally required to maintain chimneys and fireplaces in rental properties under both the Residential Tenancies Act and the Healthy Homes Standards. Open fireplaces don't meet the heating standard — they must be replaced with a compliant heater or blocked off. Non-compliance carries penalties of up to $7,200 per breach.
Chimney Safety
What Causes Chimney Fires and How to Prevent Them
Chimney fires in New Zealand are caused by creosote buildup inside the flue — the result of burning wet wood, running fires on low smouldering settings, and skipping annual sweeps. FENZ responds to more chimney fires than any other household fire type during winter. Prevention is straightforward: sweep annually, burn dry seasoned wood below 20% moisture, and never let creosote progress past Stage 1.