1.0ROINTEhttps://rointe.com/en/Rogerhttps://rointe.com/en/author/roger/rich600338<blockquote class="wp-embedded-content" data-secret="OhzJ0ZItKl"><a href="https://rointe.com/en/storage-heater/">Storage Heater</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://rointe.com/en/storage-heater/embed/#?secret=OhzJ0ZItKl" width="600" height="338" title="“Storage Heater” — ROINTE" data-secret="OhzJ0ZItKl" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://rointe.com/wp-includes/js/wp-embed.min.js </script> Rointe High Heat Retention storage heater Rointe’s HHR (High Heat Retention) storage heaters are among the most advanced electric heating solutions available. They charge during the lowest off-peak tariffs (economy 7 & economy 10) and release heat efficiently throughout the day, reducing running costs while helping to balance demand on the electricity grid. Off peak tarifs compatible ❏ Save while you sleep ONYX automatically charges during off-peak tariff periods (such as Economy 7 or Economy 10), ensuring it uses the lowest-cost energy available. High Heat Retention heater ❏ Maximum heat storage Thanks to its high-retention core using cells with 6% greater storage capacity than traditional storage heaters. Full control of comfort ❏ Steady temperature ONYX “senses” the room temperature and releases more or less heat as needed, preventing overheating and avoiding unnecessary use of stored energy. Efficient smart comfort ❏ Inverter Smart Adaptive Tech The Inverter fan minimises heat waste and maximises efficient distribution, delivering highly desirable performance. What is off peak heating? Off-peak heating uses electricity during the cheapest, low-demand hours — usually overnight — and stores that energy as heat for use throughout the day. In the UK, this is typically linked to Economy 7, which offers a reduced night-time rate and a higher daytime rate. By charging during these low-cost hours, off-peak heaters can cut running costs while keeping your home warm all day. It’s an efficient way to take advantage of low-demand electricity, reduce pressure on the grid and improve overall energy efficiency. What is high heat retention (HHR)? High Heat Retention (HHR) is the new generation of electric storage heating: they store heat for much longer and release it slowly and efficiently throughout the day. More stored heat, less waste. All-day comfort, even during peak hours. Greater efficiency from every off-peak charge. MORE INFORMATION How do storage heaters work? Storage heaters like Onyx, make your daily heating more efficient by using cheaper night-time electricity and turning it into steady comfortable warmth for the next day. They charge at night during off-peak hours. They store the heat thanks to strong insulation. They release it when needed. More information Exceptional Heat Retention Onyx offers unparalleled heat retention, storing warmth deeply and releasing it slowly over time. Rather than cooling down quickly, it keeps rooms comfortable for longer and reduces the need for constant reheating — delivering steady comfort with greater efficiency. With this superior heat-storage performance, Onyx retains more of the heat it absorbs, wasting less energy and maintaining comfort for up to 16 hours after charging. Instead of overheating in the morning and cooling too quickly in the afternoon, the warmth is released steadily and predictably throughout the entire day. Precise control ❏ Visual display The Onyx storage heater provides clear, precise information: charge percentage, selected temperature, schedules, modes and much more at a glance. Smart charge function ❏ Save in every charge Thanks to its Smart Charge function, ONYX charges at the optimal moment within its own programmed schedule to deliver the desired comfort while saving energy. Fully programmable ❏ Heating that hits your lifestyle Why settle for just a handful of programming options when you can enjoy full 24/7 control? With ONYX, every hour of every day is fully customisable to match your comfort and lifestyle. Advance & Boost functions ❏ Always ready to heat With the Advance function, if you arrive home earlier than planned, simply press the Advance button and the heating will adjust to your desired temperature immediately — no waiting required. Boost provides instant additional heat whenever you need it. Smart Charging That Actually Works Smart Charging allows the Onyx storage heater to charge more intelligently instead of simply heating for the entire off-peak period. With this mode activated, the heater uses an advanced algorithm to calculate how much heat it needs for the next day and when it should start charging to reach that level on time. Watch the video to learn more. https://youtu.be/wJ-ax4PScsg WHY DOES THIS MATTER? Because no storage heater can retain heat 100%. The longer it holds the stored heat, the more is naturally lost. By charging later — only when necessary — Onyx minimises heat loss and reduces unnecessary energy use. Smart Charging means the heater never charges more than needed, never charges earlier than necessary, and always aims to reduce heat loss and improve efficiency — automatically. TOP FEATURES INVERTER SMART ADAPTIVE Our most advanced low-consumption technology. Onyx’s Inverter Smart Adaptive system adjusts performance intelligently to deliver steady, comfortable heat while keeping energy use to a minimum. WIFI DIRECT An integrated WiFi module built directly into our connected heating products, enabling seamless data transmission and smart control, without the need for external gateways or extra hardware. IA HEATING SYSTEM The Advanced Artificial Intelligence heating system learns from your habits and room conditions, recommending smarter settings that enhance comfort while optimising energy consumption. MINERAL CORE TECH Its internal energy cells are engineered with a special magnetite alloy designed to store and retain up to 6% more heat per unit, ensuring a steady, comfortable heat release long after charging has finished. LIMITED MODE Limited Mode narrows the selectable temperature range and restricts certain functions, allowing only controlled adjustments within preset limits. Perfect for homes with children, hotels, hostels and Airbnb properties. SMART CHARGE Smart Charging allows Onyx to charge intelligently rather than heating through the entire off-peak period. The heater calculates how much heat it will need for the next day and charges only what’s necessary, at the right time. BOOST MODE Boost Mode increases the temperature to a selected level for a defined period, providing rapid, focused heat when needed. Once the boost time ends, the heater automatically returns to its normal settings for efficient operation. ADVANCE MODE Advance Mode allows you to activate the next scheduled heating period instantly. If you arrive home earlier than planned, simply press the Advance button and the heater switches to the upcoming comfort temperature without waiting. Heating that adapts to your life With ONYX, you’re not limitedhttp://rointe.com/wp-content/uploads/2025/11/Smart-Adaptive.png