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Item no. 42191, 42192, 42193, 42194, 42195, 42196, 42197, 42198, 42199, 42206, 42207
SVB price: €390.71
You save: 21%
Excl. VAT, excl. shipping costs.
This is a NET-price excluding German VAT. Shipments to countries outside of the EU may be subject to import duties and taxes.
6 left in stock
Item no.
Model no.
Operating voltage
230 V
Inlet (cold water)
Outlet (warm water)
Inlet (engine cooling)
Outlet (engine cooling)
Incl. mixing valve
Tank material
Stainless steel
Outer material
40.5 cm
30 cm
7 kg
B3 15

Product details

The tank of this Quick boiler series B3 is made of high quality, stainless steel (1.5 mm wall thickness). The boilers are equipped with a strong foam insulation and a durable plastic casing. These boilers feature a safety / non-return valve and they are equipped with an electric heating element for a power of 500 Watts or 1200 Watts. The B3 boilers are available in various volume sizes. The connection is possible via ½" fittings/nozzles (not included).


multi-flag Manual
.PDF, 1,73 MB

What other SVB customers have to say

100% real reviews
Duncan H.
by Duncan H. Flag of Ireland 6/20/2021 Variant: 42191
Good replacement for an older Nautic 16L
My boat originally had a Nautic Boiler 16L installed; the model that has a galvanized interior. This finally failed, and after careful measurements, I determined that the 20L modern model would fit just fine in the same space. Installation was easy, and the Maestrini barb fitting sold by SVB went on easily with plenty of PTFE tape to prevent leaks. New brackets are made of thinner stainless than the one from 20 years ago, but they seem perfectly adequate for the task at hand.
Petri N.
by Petri N. Flag of Finland 6/9/2021 Verified purchase Variant: 42198
works well
Karel R.
by Karel R. Flag of Czechia 8/5/2015 Variant: 42197
Best, best...
To nejlepší pro vaší loď. 30l je zásoba velká od motoru máte nahřáto na 80 C. Musíte hodně ředit tak máte zásobu na dlouho. Po 48hod má voda 35-40 st.C. Montoval jsem jich několik a je to velká spokojenost.

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Customers ask customers

Ask other SVB customers who have already purchased this product from us about their experience.

Your question will be automatically forwarded to other SVB customers and published on the product page. Please do not ask any questions which can only be answered by the SVB team – such as the status of an order or product availability. You are also more than welcome to contact our SVB team by email at: or by phone on: +49 (0)421 57290510 .

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Question about delivery contents

User image of Thomas P.
Thomas P. asked
on Jul 14, 2022
Flag of English Does this Quick B3 boiler include Thermostat Mixer Valve or do I need to order that seperately?
User image of Cory V.
Cory V. answered
on Mar 10, 2023
Dear customer, they are equipped with an electric heating element for a power of 500 Watts or 1200 Watts.

Technical question

User image of Jacqueline D.
Jacqueline D. asked
on Jun 1, 2020
Flag of English Can anyone advise on what plumbing parts we need to plumb the water heater in.?
User image of Hugh G.
Hugh G. answered
on Jun 1, 2020
You'll need to make the connections to your water system and your engine. The ports are all half inch male threads so you will need four female fittings. The type of fitting depends on your water system hoses and engine hoses and the diameter of each. I used 15mm half inch hose tails with jubilee clips to connect to the engine cooling system and standard half inch flexi-hoses to connect to the copper water system pipes via compression fittings.
User image of ATHANASIOS M.
on Jan 20, 2023
Flag of English Kindly advise me if this is 110V or 220V. I want to order the 30L 1200W. Thank you in advance.
User image of Sven W.
Sven W. answered
on Feb 1, 2023
Dear Athanasios, if you order this Boiler, you will get this with a 230 Volt, because we only got 230 Volt in our stock.. Boiler with 110 Volt, we have to order from the manufacturer. Your SVB-team.

General question

User image of Sheila Ann M.
Sheila Ann M. asked
on Mar 5, 2023
Flag of English What is the warranty period for the B3 water heater
User image of Sven W.
Sven W. answered
on Mar 6, 2023
Dear Sheila Ann, the manufacturer gives a guarantee, but without specifying how long or for what. Unfortunately, as a retailer, we cannot provide any more precise information, only the manufacturer can do this. Yours SVB-team.