Menu
Skip to main content
phone.svg 015395 66193email.svg sales@flowjet.co.uk
FacebookTwitterBlogYoutube
All Products
Brands
Machine Repair
Size Charts
Offers
Contact Us
Type to search
Type to search

Shop popular:

NEW Nilfisk Hot Pressure WashersPressure WashersMachine Parts by BrandPumps & SparesPopular High Pressure HosesHose ReelsNozzlesPressure Washer TriggersUnloader ValvesInterpump Service Kits

Free UK mainland delivery on orders over £200 excluding VAT

Speak to an Expert: 015395 66193

Finance Available

Rated 4.8 on Google

Complete Boiler Units & SparesComplete Boiler Units & Spares
Maxflow Hotbox 25 Diesel Boiler for Pressure Washers, 250 Bar, 25 LPM, 150°C
MaxFlow HotBox 25

Maxflow Hotbox 25 Diesel Boiler for Pressure Washers, 250 Bar, 25 LPM, 150°C

SKU: HotBox25
exc. vat
inc. vat
Price
£2,179.25
£2,615.10
In Stock
Order by 2 PM for next day delivery
  • Get finance on orders over £1000 Learn More
  • Free UK mainland delivery on orders over £200 excluding VAT
  • Bulk discounts available
  • Stock moves quickly. For large or urgent orders, call 015395 66193 to confirm availability.
  • Need assistance? Call 015395 66193

Overview

The Maxflow Hotbox 25 is an electrically powered diesel boiler that connects to almost all cold water pressure washers and turns them into hot water units. It heats water up to 150°C and is aimed mainly at agriculture and livestock use. It can also be used to fill hot tubs and swimming pools.

It runs from a standard 230V socket and is designed for high performance and low fuel consumption. It meets European gas emissions regulations. For effective hot water cleaning, the supply needs to provide at least 15 bar.

Specification

Part numberHOTBOX25 (manufacturer part 3.064.04.022)
BrandMaxflow
Maximum flow25 litres per minute
Maximum pressure250 bar (3600 psi)
Maximum temperature150°C
Power supply230V standard socket
Minimum water supply pressure15 bar
Fuel tank17 litres, with level sensor
Coil3/8" coil
ConstructionStainless steel cover, painted steel base

Features

  • Flame control
  • Flow switch, level switch and pressure switch
  • Safety valve
  • Diesel pump driven from the fan motor housing through a coupling
  • Hours counter with display and LED alarm
  • Electrical panel with power switch and temperature-regulating thermostat

For technical advice or help choosing a machine, call 015395 66193 or email sales@flowjet.co.uk.

    Get 10% Off Your First Order

    Join our trade list for new-stock alerts, clearance deals and expert cleaning tips. View our Privacy Policy. Unsubscribe at any time.

    Flowjet Cleaning Equipment is a family-run

    business dealing in commercial and industrial

    Pressure Washers

    Customer Service
    Contact UsAbout UsOur BrochuresServicing & RepairMachine Collection & Repair ServiceFinance
    Charts and Drawings
    Pressure Washer Nozzle ChartFoam Nozzle Size ChartParts DrawingFAQsDrone Cleaning EquipmentElectric Motor Sizing Guide
    Information
    Delivery & ReturnsTerms & ConditionsPrivacy PolicyCookie Policy
    Address

    Flowjet Cleaning Equipment LTD

    Unit 4, Gatebeck Farm

    Gatebeck, Kendal

    LA8 0HW

    United Kingdom

    015395 66193sales@flowjet.co.uk
    © 2026. Flowjet Cleaning Equipment Ltd. All rights reserved. Company No. 07548943 / VAT No. 946227313Built by Vitara Commerce
    FacebookTwitterBlogYoutube

    PROMO: Get 10% OFF

    Would you like to save 10% on your order today? Enter your email address to receive a discount code!

    By signing up, you agree to receive marketing emails. View our privacy policy and terms of service for more info.