---
product_id: 59962950
title: "180 Litre Optimum Electrically Heated Indirect Unvented Hot Water Storage Cylinder"
brand: "optimum cylinder"
price: "€ 963.10"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/59962950-180-litre-optimum-electrically-heated-indirect-unvented-hot-water-storage
store_origin: IE
region: Ireland
---

# 180 Litre Optimum Electrically Heated Indirect Unvented Hot Water Storage Cylinder

**Brand:** optimum cylinder
**Price:** € 963.10
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 180 Litre Optimum Electrically Heated Indirect Unvented Hot Water Storage Cylinder by optimum cylinder
- **How much does it cost?** € 963.10 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/59962950-180-litre-optimum-electrically-heated-indirect-unvented-hot-water-storage)

## Best For

- optimum cylinder enthusiasts

## Why This Product

- Trusted optimum cylinder brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

180 Litre Optimum Electrically Heated Indirect Unvented Hot Water Storage Cylinder The Optimum Direct Unvented Hot Water Cylinder is the new and affordable range from RM Cylinders. As with the rest of RM's range of unvented products, it has been carefully developed and purpose built to existing building and water standards. The ErP rating of the Optimum Indirect Unvented allows consumers to make an informed choice when purchasing their cylinders and a rating of C ensures consumers are getting a high quality low heat loss unit which has been built to last. The unit is environmentally friendly and the highly efficient foam installed has been developed to give you the best results without sacrificing space. When a highly efficient and long lasting hot water storage unit is required, the Optimum Indirect is the perfect cylinder for you.  Features: * Indirect heated hot water cylinder for connection to boiler * 22mm compression fittings throughout * Superior 1mm duplex stainless steel * Clearly labelled connections * 3kW Incoloy Immersion fitted as standard * Designed with a new flat base for increased stability * 50mm insulation foam * Butt welding for longer life * WRAS approved * 25 Year Guarantee * 2 Year Component Guarantee * Energy Related Product ErP Rating: C  Technical Specification: * Capacity: 180 Litre * Height: 1280mm * Diameter: 545mm * Weight (Empty): 32kg * Weight (Full): 211kg * Indirect Re-heat time: 36 mins * Heat Loss: 1.82 kWH/24h * ErP Rating: C  Supplied With: * Cold Water Inlet Set * Tundish * Expansion Vessel * T& P Relief Valve * 3kW Immersion Heater * 2 Port Zone Valve * Dual Thermostat

## Features

- Indirect heated hot water cylinder for connection to boiler
- Please note due to the size of the item we are unable to ship to offshore locations.
- 22mm compression fittings throughout
- 25 Year Guarantee
- WRAS approved

## Images

![180 Litre Optimum Electrically Heated Indirect Unvented Hot Water Storage Cylinder - Image 1](https://images-eu.ssl-images-amazon.com/images/I/41Da4oPgUlL.jpg)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ie/products/59962950-180-litre-optimum-electrically-heated-indirect-unvented-hot-water-storage](https://www.desertcart.ie/products/59962950-180-litre-optimum-electrically-heated-indirect-unvented-hot-water-storage)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-02*