The bottom line The honest entry: it does the one job properly and does not pretend the drum is bigger than it is.
The AD 2 is the small Kärcher ash vacuum: a 14-litre metal container, filter cleaning, and a clear statement that it is for cold ash.
Why ash needs its own machine
Ash is fine, abrasive and, for far longer than it looks, warm. A household vacuum’s bag turns it into airborne dust; a workshop vacuum’s plastic drum and cartridge filter offer no protection if something in that ash is still alive. A dedicated machine answers both: a metal body that will not melt, and a filter arrangement designed for a material that blinds filters faster than anything else in the house.
The filter is the whole game
Ash blinds a filter in minutes, and a blinded filter means no suction and a hot motor. The cleaning mechanism is therefore not a convenience here — it is what lets the machine finish a grate in one go.
Fourteen litres, honestly
For a stove cleaned weekly, fourteen litres is a couple of sessions. For an open fire burning every evening through the winter, it is one. The AD 4 Premium above it takes the same approach with more capacity and a flame-retardant body.
The rule that matters more than any specification
Twenty-four hours cold, minimum. Everything else on this page is a preference; this one is the difference between a clean hearth and a fire in a plastic-wheeled drum in the corner of a room.
Availability
One reference across Germany, the UK, France, Italy and Spain. Not sold on Amazon’s US store.
What we like, and what we don't
Strengths
Metal container — the specification that separates an ash vacuum from a workshop one
Filter cleaning, which matters more on ash than on any other material
Doubles as a dry vacuum for coarse dirt
Compromises
Fourteen litres fills quickly on a wood-burning household
Cold ash only, without exception
Not sold on Amazon's US store
Specifications
Container
14 l, metal
Filter cleaning
Yes
Intended use
Fireplaces, pellet stoves, cold ash and coarse dirt
Part number
1.629-711.0
Amazon reference
B074XK2D8W
EAN
4054278242026
Questions people actually ask
How cold does the ash have to be?
Completely — the fire out and the ash cold right through, which in practice means at least 24 hours after the last burn. Embers survive under a grey surface far longer than they look as though they should, and a drum full of ash with air rushing through it is exactly the environment an ember needs. No domestic ash vacuum is rated for hot ash, whatever the packaging implies.
Why not use my workshop vacuum?
Two reasons. Ash is abrasive and fine enough to pass a standard cartridge filter and reach the motor, and a plastic drum with a plastic hose end offers nothing if an ember does survive. An ash vacuum has a metal body, a metal hose end and a filter arrangement built for exactly this material.
Our score
7.2/ 10
The honest entry: it does the one job properly and does not pretend the drum is bigger than it is.
Who this one is for, among cleaning machines
One fireplace or pellet stove, cleaned regularly, where the vacuum lives beside the hearth
Set beside the neighbouring cleaning machines
cleaning machines from the same category, at nearby prices. Only what all of them publish is shown: a column with holes compares nothing.
Where the models are not equal, in cleaning machines
If price decides: Einhell TC-AV 1830 D, at 58 €.
Highest Amazon reference in the table: Kärcher AD 4 Premium (B0733GL13H).
When to look elsewhere among cleaning machines
On a tighter budget: Lehmann Ash Vacuum 15 L, at 40 € in the same category. see the review
Where this one sits on price, among cleaning machines
At 120 €, it sits +85 % against the 65 € median of the 6 models in this category published here.
This model in our cleaning machines guides
Choosing an Ash Vacuum — 2026 Guide | CleanVerdict
Price and availability, for cleaning machines
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom. Listed is not the same as in stock — availability changes daily.
Details checked on August 15, 2026.
Sources
Specifications: the manufacturer sheet for cleaning machines and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.