Everything inside the house: bathrooms, kitchens, heating, damp and the fittings you only buy once a decade.
Three sources on the 2kW Dragon 4 TRD40820T, the running cost at the October 2026 price cap on all three settings, and the figures that disagree — 14.1kg or 15.1kg, 60m³ or 60m², and £114.95 to £204.91 on a single day.
Emma has moved the name “Original” onto a 25cm pocket-spring hybrid, and almost every review you will find tested the old all-foam one. Three sources, four firmness scores, and what the 200-night trial and ten-year guarantee really promise.
TechRadar put a meter on it at 60.7 dB, a blogger has run one daily for a year and measured the drawers, and 554 verified buyers rate it 4.8/5. Plus 2,470 W worked out against the current price cap, and three different answers on the guarantee.
Which? lab-tested it and paywalls every score. Tech Advisor measured the previous generation. 667 AO buyers rate it 4.8. We set the three side by side, price the running cost at the October 2026 cap, and show where retailers disagree on litres.
Nobody put a stopwatch on the plain single-battery IZ400UK. We line up a timed Expert Reviews test, 62 Reddit owners and 1,872 AO buyers, print every run time, weight and bin figure with whoever published it, and date the prices.
200, 250 and 300 are grams of fill per square metre, not degrees. Buy on the ISO 23537-1 comfort figure — and on the mat under it, which quietly decides whether that rating means anything.
No consumer title has tested it. What exists is one installer who rates it above the rest of the Triton range, and several hundred verified buyers — including the ones who dislike the phased shutdown.
Administration in 2023, sold to its biggest rival, and stopped taking orders in November 2024. What happened to the guarantees, and the two ASA rulings worth knowing about.
A combi or an unvented cylinder rules you out — over 12 litres a minute off the mains is notifiable work. If you do have a loft tank, the bar rating on the box is measured with the water switched off.
A bigger kW does not give you a hotter shower or a cheaper one — it gives you litres a minute, and only if your cable and cold main can carry it. Five units priced at Screwfix, Toolstation and the makers direct, with ratings, sample sizes and running costs.
Room temperature decides compressor or desiccant. And a 20-litre machine puts out about eight litres a day in a real British house — the box figure is measured somewhere you do not live.
A 7-litre bowl for £129.99 and a 4.3-litre bowl for £189 are not the same purchase, and the bigger number is not the better one. Six machines from £28.99 to £189, with prices, weights and buyer ratings checked on 8 September 2026 — and the three that have no rated sample at all.
A 3.9-litre bowl holds 2.4 litres; a 3-litre bowl works to 1.3. Five food processors from £59.99 to £299 with prices, ratings and sample sizes checked in September 2026 — and why the guarantee, not the wattage, is where the money goes.
