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Best condensate pump

Updated: 22 October 2026

You already know you need a pump. What you want now is one amazon.co.uk listing from this batch that matches the job without hiding a two-review star line behind a £30 price. This best condensate pump page ranks the twelve ASINs on the [condensate pump comparison](/hub/heating/condensate-pump) by role: high-flow tank, a boiler name with blank cells, a mid-price tank, and thin minis. Each pick ends with who should skip it. Figures are the stored UK listing extracts and review counts, not a workshop test. Peter F. read those amazon.co.uk rows against public UK sources. There was no lab test. A qualifying purchase can earn a commission at no extra cost to you.

You already know you need a pump. What you want now is one amazon.co.uk listing from this batch that matches the job without hiding a two-review star line behind a £30 price.

Our top picks

Grundfos Grundfos Conlift1-LS

Best overall

Grundfos Grundfos Conlift1-LS
8.8/10about £71.28
View offer
Aspen Pumps Aspen FP3349 Max Hi-Flow

Rank 2

Aspen Pumps Aspen FP3349 Max Hi-Flow
8.8/10about £85.00
View offer
BAOSHISHAN BAOSHISHAN QS-360L

Best value

BAOSHISHAN BAOSHISHAN QS-360L
6.0/10about £59.99
View offer
On this page
  1. 1.What this set can and cannot decide
  2. 2.High-flow tank
  3. 3.A blank boiler name, then the mid-price tank
  4. 4.Who should buy nothing here

What this set can and cannot decide

The comparison holds twelve condensate pumps from about £25.84 to £85.00, mixing Aspen and Grundfos names with BAOSHISHAN, AirTech-UK and several budget minis that have no reviews. We did not flow-test them. Scores combine amazon.co.uk stars, review depth, printed specs and price, with deductions for thin counts and listing gaps. Best here always means best for a stated duty on this shelf. Trade roundups that rank Sauermann or Pump House units are a different catalogue. A Derbyshire Refrigeration Aspen row even quotes 6 m and 35 dB that do not match the FP3349 cells on B07459WJRS. Use manufacturer PDFs for engineering, and use this page to see which UK listing backs a claim with reviews today.

High-flow tank

For air-conditioning-led tank duty with the fullest printed curve in this set, the Aspen FP3349 Max Hi-Flow at £85.00 is the top pick on score. It prints 550 L/h at zero head, a 1.7 L tank, 5 m head and a 3.0 A normally closed safety switch, with 4.4 stars from 90 reviews. UK reviews say the flex arrives with bare wires and no 1 A fuse in the box, so it is not a kettle-plug install. At the stated 5 m head the listing only promises 10 L/h. Skip this listing if you need a moulded BS 1363 plug in the carton, or if you wanted a boiler pump on listing text alone. Aspen’s max water temperature is 40°C on the page and no pH is printed.
Grundfos Grundfos Conlift1-LS

Testsieger

Grundfos Grundfos Conlift1-LS
8.8/10about £71.28
View offer

A blank boiler name, then the mid-price tank

Grundfos Conlift1-LS at £71.28 is the listing many boiler owners open first, with 4.4 stars from 134 reviews. On amazon.co.uk, flow, head, voltage and pH cells are blank. You cannot copy 600 L/h or 5.5 m from a Conlift PDF onto this ASIN without checking the label on the pump that arrives. Reviews mention hose and wall fixings and a boiler shut-off test when the safety path opens. Several texts call the unit loud, and most written reviews in the extract are not from the United Kingdom. Treat it as a price check when your engineer already named that model. If you need numbers on the page first, use the condensate pump buying guide. BAOSHISHAN QS-360L at £59.99 is the best value pick: 360 L/h, 6 m lift, 1.8 L tank, 24 W and a 5 m hose, for air-conditioning duty. Five reviews at 4.0 is a gamble next to Aspen’s 90, and one UK buyer reports total failure inside a month. No safety-switch current is printed. AirTech-UK 554405 at £82.99 has 4.2 from 17 reviews and names condensing boilers, but flow is in US gallons at foot intervals, with shut-off at 15 ft.

Who should buy nothing here

Ejoyous and YUKERMARB 24 L/h units show 5.0 from two reviews. That is a thinner sample than 4.4 from 90. QS-24L’s five reviews include a UK text that the pump never stops once started. QS-24B at 2.9 from three reviews should stay off shortlists until its tank-size clash and wiring-colour warning are resolved. Gas boiler work that needs a manufacturer-named pump, pH-rated materials and a safety interrupt belongs with a Gas Safe engineer and the boiler condensate pump page. MAJONMMERD and Yosoo name boilers without pH. Denash and YUKERMARB 100 L/h units cap lift at 2 m. If the pump you own is leaking or locked out, see condensate pump not working before you replace it.

Common questions

Which listing has the most UK review evidence?
Aspen FP3349 with 90 reviews at 4.4, followed by Grundfos Conlift1-LS with 134 reviews at 4.4, though many of those texts are not from the United Kingdom.
Is the Grundfos listing the boiler pick even though flow is blank?
It is a name buyers search for, not a printable spec on this page. Boiler choice stays with the engineer and the manual, not an empty Amazon cell.
Is 5.0 from two reviews the best?
No. It is an average with almost no sample. Weight counts and negative texts before you treat it as leadership.
Who should skip the Aspen?
Anyone who needs a plug in the box, or who assumed 550 L/h applies at 5 m head without reading the 10 L/h line at that head.
Is the £59.99 tank a value pick or a gamble?
Both. It prints strong numbers for air-conditioning duty but only five reviews, including a one-month failure report.
Why is a 2.9 score still in the table?
The set is the amazon.co.uk shelf as captured, not a curated winners-only list. QS-24B remains as a warning example.
Does best mean quietest?
Only where decibels are printed, often 19–22 dB on minis, and even then without lab proof. Grundfos reviewers mention loud running despite no dB line.
What should a boiler owner buy from this page?
Nothing on mini bullets alone. Use Conlift only if your engineer named that model, and read the boiler page for acid, trap and termination rules before you spend.

Related pages

How to fit a condensate pump

Condensate pump

Boiler condensate pump: gravity, acid and Gas Safe

Condensate pump buying guide: check duty, lift, tank

Condensate pump not working: float, tube and freeze

Sources

Public UK and manufacturer sources named below. amazon.co.uk prices, stars and review counts on these twelve listings were taken from the listing files. Page updated October 2026.

  1. Approved Document H, drainage and waste disposal (retrieved 21 October 2026)
  2. HHIC condensate discharge installer guide (retrieved 21 October 2026)
  3. HHIC condensate pipe guidance news (retrieved 21 October 2026)
  4. Gas Safe Register FAQ (retrieved 21 October 2026)
  5. Aspen FP3349 tech sheet (retrieved 21 October 2026)
  6. Grundfos Conlift1 LS data (retrieved 21 October 2026)
  7. CoolEasy condensate pump buyer's guide (retrieved 21 October 2026)
  8. condensatepump.co.uk boiler note (retrieved 21 October 2026)