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Instant Water Heaters

Shop all Water Heaters & Pumps

At Element Shop, we offer a diverse range of instant water heaters to choose from. Our selection includes heaters that work with single-phase or three-phase electrical supplies. Browse our products to find the perfect instantaneous water heater for you.

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At Element Shop we stock a wide variety of instant water heaters designed to save space and can be installed almost anywhere. Ideal for homes and businesses in need of a reliable hot water source, these heaters just need a connection to a cold water supply and electricity to function. Our instant water heaters come in different kilowatt capacities and sizes to meet your needs. Brands such as Stiebel Eltron and Rointe Water Heaters are available and we have a wide selection to choose from, including under-sink water heaters. Contact our customer service team for assistance or any additional information on our tankless water heating products, and one of our specialists will be happy to help.

Which Instant Hot Water Heater To Use

Properties with low hot water demand or in remote areas, such as garages, outbuildings, or shower rooms, are ideal for instant water heater installation. The electric instant water heater has various power ratings to accommodate various needs. The smaller 6-8 kW units can serve a hand wash basin or shower, while the larger 8-12 kW units can serve both or provide a stronger shower. For kitchen sinks, it's recommended to install in a smaller store for increased flow rate. The 12 kW units can provide a continuous supply of 4.5 litres per minute at 48 degrees Celsius for kitchen sinks, but the actual flow rate depends on the temperature of the cold water supply. The compact instant water heaters are suitable for small spaces such as bathrooms or under sinks, providing water at 35-40 degrees Celsius for hand washing.

Our products are divided into three categories for easier selection. We offer models suitable for use with basins, single phase models for showers, basins, and sinks, and three phase heaters for individual homes.

Single Phase Water Heaters For Basins

Ideal for use in utility areas, bathrooms, and kitchenettes, select from three power options: 3.5kW, 4.4kW, and 5.7kW, all rated IP25. Ideal for over and under sink installation, these units supply hot water on demand with constant outlet temperature and no standby or heat loss.

Single Phase Water Heaters For Showers and Sinks

Single phase models are available in various power outputs and can heat water for a single shower or multiple smaller fixtures like hand wash basins. The larger models have the capacity to heat water for a shower and one or two sinks. These heaters feature energy-saving options and offer precise temperature control.

Three Phase Water Heaters For Single Dwellings

These models are designed to deliver hot water instantly for the whole home, so you don't have to wait for it to warm up. They come in four different models, each with varying capacities to accommodate different needs. The use of either 3i or 4i technology in these models is a key factor in their efficiency. The technology enables energy and water savings of up to 30% compared to traditional hot water systems, making them an environmentally friendly and cost-effective option.

Installation and Health and Safety

To install an instant hot water heater, you must have access to both a water supply and an electrical outlet. Our products come with installation instructions, but we recommend seeking assistance from a professional. Each product is equipped with a safety cut-off feature to prevent overheating and prioritise your safety. Our high-quality products are suitable for both commercial and residential use.

Why use Element Shop?

Element Shop have been trading now for over 15 years and have established ourselves as one of the leading providers of underfloor heating for both wet and electric systems in the UK. We continue to expand our range of products based on our customers feedback and have developed a catalogue of products that is perfectly suitable to plumbers and electricians who install heating products. All products have a minimum of 1 year warranty, but most of our products will carry more, some which include lifetime guarantees. We offer free next day delivery service to most of the UK, no matter how much or how little you spend, and we also offer a no quibble 14-day return policy. If you change your mind, simply return your product in its original condition and we will issue a refund. Moreover, we offer price match promise so we guarantee that if you do find one of our products cheaper elsewhere, we will match the price.

If you’d like to find out more about our products, or would like to enquire about stock, you can call one of the team on 01473 559079 who will be on hand to help with your query.

Delivery Times

Most of our products are kept in stock, in our warehouse in Ipswich. This means we can offer free next day delivery to our customers. Each range and individual product, state their estimated delivery time during checkout. We deliver to most UK locations with free, next day delivery as standard. To discuss delivery details, call us on 01473 559079.