Bosch CS 3400i system auction prices

As of 6 November 2026, hammerhistory.com has recorded 5 auction sales of the Bosch CS 3400i system with a published hammer price, closed on 23 October 2026, on 1 auction site in 1 country. One sale is free to read: a Bosch CS 3400i system sold for EUR 550 on 23 October 2026.

Known model 5 sold with a price 0 at auction now 9 seen at auction

4 hammer prices are locked. See what every Bosch CS 3400i really sold for and know a fair price before you bid. Pay once, open at once, new sales included for a year.

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All sales 5

Sold	Built	Hours	Auction house	Place	Photos	Hammer price
2026-10-23 Luft/Wasser Split-Wärmepumpen Inneneinheit Bosch CS 3400i AWS 14 M	unknown	unknown	aurena.de	DE	7	EUR 550 FREE
2026-10-23 Luft/Wasser Split-Wärmepumpen Inneneinheit Bosch CS 3400i AWS 14 E	unknown	unknown	Auction house	DE	7	in the report
2026-10-23 Luft/Wasser Split-Wärmepumpen Inneneinheit Bosch CS 3400i AWS 14 M	unknown	unknown	Auction house	DE	7	in the report
2026-10-23 Luft/Wasser Split-Wärmepumpen Inneneinheit Bosch CS 3400i AWS 14 M	unknown	unknown	Auction house	DE	7	in the report
2026-10-23 Luft/Wasser Split-Wärmepumpen Inneneinheit Bosch CS 3400i AWS 14 M	unknown	unknown	Auction house	DE	7	in the report

Click a sale to see that system with its photos and details. 4 more closed without a sale. A hammer price under EUR 100 is free to read.

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Bosch CS 3400i

Heating, cooling and ventilation

The Bosch CS 3400i AWS is the indoor hydraulic unit of an air to water split heat pump system, used for domestic heating and hot water generation. It is paired with an outdoor air source unit and contains the heat exchanger, circulation pump, controls and often a buffer or hot water storage arrangement. It sits in Bosch's residential heat pump range aimed at modernising heating in houses.

We recognise this model across the auction sites and keep every one we see together.

On a used one

Check the condition of the integrated hot water cylinder if fitted, the circulation pump and expansion vessel, and ask whether it was installed and serviced by a qualified heat pump technician with the matching outdoor unit.

About Bosch

Bosch is a German engineering and technology group founded in Stuttgart, known worldwide for its power tools and accessories sold under the Bosch and Bosch Professional names. Its range covers hand and power tools, garage and workshop equipment, heating and ventilation products, garden machinery and e-mobility items such as e-bikes. The company is one of the largest manufacturers of mechanics hand tools and construction equipment globally.

Founded 1886 · Gerlingen, Germany

All Bosch models

5sold with a price

0at auction now

1auction sites

1countries

4 more hammer pricesin the report · EUR 9 once

sold, price lockedfree to read

Questions about Bosch CS 3400i auction prices

How many Bosch CS 3400i auction sales are on record?

5 sales with a published hammer price, closed on 23 October 2026, on 1 auction site in 1 country. 4 more closed without a sale.

Is a Bosch CS 3400i at auction now?

Not at the moment. The lots of this model that come to auction appear on this page while they are open, and every sale that closes with a price is added to the table.

Are the Bosch CS 3400i hammer prices free to read?

The oldest sale of every model is free to read, and so is every hammer price under the site's floor. The other 4 hammer prices of the Bosch CS 3400i open with an account: every sale of the model for a year, or one sale on its own.

Hammer prices are what the auction house recorded when the lot closed, before the buyer's premium, in the currency of the sale. A sale listed on a house's own site and on its platform counts once. Doubt a figure? Open the sale and its listing is linked there. How prices are recorded.