The Joule Invacyl 180L Indirect Standard Unvented Cylinder delivers mains-pressure hot water for 4–5 bedroom properties, heated via the high-efficiency smooth tube primary coil from your boiler or heat pump. The 545mm standard body suits a conventional airing cupboard.

Key Features

• Duplex stainless steel inner vessel — superior corrosion resistance and long service life
• High-efficiency smooth tube primary coil for rapid heat transfer and fast recovery
• Compatible with gas, oil, LPG and heat pump heating systems
• Factory-fitted 3kW Incoloy immersion heater for backup and boost
• Caleffi safety components as standard — T&P relief valve and inlet control group included
• KIWA certified — fully compliant with UK Building Regulations, Water Regulations and ErP Legislation
• Screwed connections with compression fittings supplied as standard
• Standard 545mm body — suits conventional airing cupboard installations

Suitable For

Suited to 4–5 bedroom properties with up to 4–6 people. Handles high simultaneous demand across multiple bathrooms in busy households. Requires connection to a boiler or heat pump for primary heating; the backup immersion heater provides continuity if the heat source is offline.

At GetPlumb, we strive to provide reliable and cost-effective delivery options to our customers. Please review our shipping policy below.

🆓 Free Local Delivery (Orders £60 & above)

We offer FREE delivery on orders £60 or more for selected local areas.

Eligible Postcodes Include:

• RG*
• SL*
• OX10*, OX11*, OX49*
• HP1*, HP3*, HP8*, HP9*, HP10*, HP11*, HP12*, HP13*, HP14*
• WD*, HA*, UB*, TW*, KT*
• W1* – W9*
• NW*, SW*

Delivery Time: 2–4 working days
Shipping Cost: £0.00

📦 Standard Shipping (Weight-Based Rates)

For orders that do not qualify for free delivery, standard shipping rates apply based on total cart weight.

• For cart weight between 0–5 kg, the shipping cost is £2.99 with a delivery time of 2–4 working days.
• For cart weight between 5–25 kg, the shipping cost is £7.99 with a delivery time of 2–4 working days.
• For cart weight between 26–40 kg, the shipping cost is £15.98 with a delivery time of 2–4 working days.
• For cart weight of 41 kg and above, the shipping cost is £31.96 with a delivery time of 2–4 working days.

🧱 Block Salt (Harvey’s) – Unit-Based
Shipping

This rate applies only to Harvey’s block salt products.

• £7.99 is charged for every 3 items.
• The charge increases by £7.99 for each additional set of 3 items.

Examples:

• 1–3 items → £7.99
• 4–6 items → £15.98
• 7–9 items → £23.97

Delivery Time: 2–4 working days

📏 Large / Long Items (Length-Based Shipping)

For oversized items where the product length is 1.5 metres or more:

Conditions:

• Product length ≥ 1.5 m
• Cart weight ≤ 40 kg

Shipping Cost: £18.00 (flat rate)
Delivery Time: 2–4 working days

Collection from Store

Customers can also choose to collect their order from our store in
Reading, UK, at no additional charge.

For any questions regarding shipping, please contact our support team at online@getplumb.co.uk.