--- product_id: 2336375 title: "RLV4305A1000 5-2 Day Programmable Thermostat for Electric Baseboard Heaters" brand: "honeywell home" price: "€ 105.90" currency: EUR in_stock: true reviews_count: 13 category: "Honeywell Home" url: https://www.desertcart.gr/products/2336375-rlv4305a1000-5-2-day-programmable-thermostat-for-electric-baseboard-heaters store_origin: GR region: Greece --- # 3500W max power 100% silent TRIAC switching 5-2 day programmable RLV4305A1000 5-2 Day Programmable Thermostat for Electric Baseboard Heaters **Brand:** honeywell home **Price:** € 105.90 **Availability:** ✅ In Stock ## Summary > 🔥 Stay cozy, stay smart — control your comfort like a pro! ⚡ ## Quick Answers - **What is this?** RLV4305A1000 5-2 Day Programmable Thermostat for Electric Baseboard Heaters by honeywell home - **How much does it cost?** € 105.90 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/2336375-rlv4305a1000-5-2-day-programmable-thermostat-for-electric-baseboard-heaters) ## Best For - honeywell home enthusiasts ## Why This Product - Trusted honeywell home brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Installation:** Non-polarized 2-wire connection means quick, hassle-free setup - • **Whisper-Quiet Operation:** TRIAC switching ensures zero noise, perfect for focused work or relaxation - • **Precision Heating Control:** ±0.27°F accuracy for ultra-comfortable temperature management - • **Smart Weekday/Weekend Scheduling:** Separate 5-2 day programming with 4 daily periods to match your lifestyle - • **Backlit Display & Easy Programming:** Clear screen and intuitive controls keep your comfort just a few taps away ## Overview The Honeywell Home RLV4305A1000 is a high-precision, 5-2 day programmable thermostat designed for electric baseboard heaters, convectors, radiant ceilings, and fan-forced heaters. With an impressive ±0.27°F accuracy and silent TRIAC switching, it delivers consistent, whisper-quiet temperature control. Its user-friendly backlit display and non-polarized 2-wire installation make it ideal for professionals seeking reliable, customizable heating schedules that fit their busy lifestyle. ## Description The RLV4305A 5-2 Day Programmable Thermostat allows you to designate your preferred heating and cooling selections for weekdays and weekends. It is compatible with electric baseboards, convectors, radiant ceilings (2-wire) and fan-forced heaters and features a high capacity of 3,500 watts at 240 volts. Additional benefits include precise temperature control and 100% silent TRIAC switching. Review: Works well - But had to exchange the first one I bought. - Firstly lets quickly get this out of the way. This is a LINE Voltage thermostat. The simplest way to describe this is -its a light switch.. just switches on when it hits the temp to kick of or off. So if you're seeing 3 or 4 super thin wires this isnt the right item for you... That being said - my home is basically a hot water boiler hooked up to 2 zones and zone control is either powering on or off these water circulators. Its just a simple 120v line. I replaced two analogue mercury style thermostats and hook up is straight forward and dummy proof. The first thing before you start the replacement ... TURN OFF the Power at the breaker! This is line voltage or 120v will be uncomfortable.. or if you're 240v... yeah don't want to touch a live wire there.... The thermostat is NOT polarity sensitive. That means you can join either the hot or neutral to either black wire - complete the circuit and shove everything back in. For me I used standard Wagos rather than nut connectors and replacing both thermostats was a breeze. I did have an issue with the FIRST one I bought from a big box store. The unit kept on rebooting which every 4 minutes throws out a 2.5 and 11.9 code. I tried to search what these codes mean but on the 2nd and replacement installs I noted i get these codes ON boot but the working ones just never showed those codes after boot. The desertcart shipped unit worked flawlessly and I was able to return to the big orange box store with no issues. So for anyone with LINE voltage heating or cooling - this is a great thermostat to program your wake up away and sleep ranges for the temps in the home. Better than 1 setting regardless of there is a human home or not. Super Easy DIY - just work safe! have fun!! Review: works great, silent, accurate - This review is for the "new" version, RLV4305A. I got this to control a 1200W Electric Radiant Cove Heater (QMark RCC12012C) that I installed to provide supplementary heat in a bedroom. For this project, a programmable thermostat was a requirement. If I let this radiant heater run continuously, it could cost me over $100/month in electricity, just to improve the heat in one room which I am mostly not in during the day. It really is silent. The box says it uses a TRIAC, which I learned is like a dimmer. So instead of clicking off when the room gets noticeably warm and clicking back on when it gets noticeably cold, this t-stat constantly raises and lowers the dimming level to tightly track the setpoint. There is some indication of this in the display, showing 0-5 heat wave squiggles, depending on how much power it allows through. The LCD display lights up when you press a button and stays lit for 10 seconds or so. Normally, it is completely dark. Without the backlight, it is still readable if there is enough ambient light, like during the day or with room lighting on. In normal use, it displays the current time and temp, mode and period, plus the squiggles mentioned above. Touching the temp up/down button once will show the set temp. Install is straight-forward if you are familiar with household electric service. This device is installed in series with the electric heater (like a wall switch) and modulates the line-voltage AC electricity that actually passes through both the thermostat and the heater(s). There are no low-voltage control lines here like a regular household thermostat has. I don't understand why there are 4 mounting holes in the unit. I used the 2 left holes with the 2 included screws to mount it to the left half of a 2-gang electrical box. I don't get why the other 2 right holes don't line up with the holes on the right side of the box, but even like this, it is plenty firm and secure and it completely covers the box opening. Programming is easy. "5-2" means you set separate Mon-Fri and Sat-Sun schedules, but nothing more sophisticated. By default, the M-F weekday schedule has 4 time periods (wake, leave, return, sleep) to program, but the Sat-Sun schedule only has 2 (wake, sleep). However, you can set times and temps for the 2 other Sat-Sun periods (leave, return) too. If you have a weird schedule you want to program, this might not be sufficient, but for most cases this should be good enough and easier to program. There are enough buttons with meaningful labels to make the work of programming it fairly easy. Rotate though the 8 periods with the "pgm" button, and change the time with the hr/min buttons and the temp with the up/down buttons. Finish/save by pressing the "⏎" button. Not rocket science. There is no "OFF" button or mode. "Manual" mode is a constant set temp like an old thermostat. The "Away" mode allows for a lower constant set temp (default 59f), presumably for extended time away from home. "Standby" mode is almost OFF, but it will turn on if the temp drops below 41f. In all the modes, it draws a tiny bit of power for itself. I have not tested this unit during an extended power outage, but it claims to remember the date/time for 5 hours or so without power. There is no battery compartment, so it must have something like a rechargeable battery or a big capacitor inside it. I'm very happy with the quality and the price is better than every other programmable line voltage thermostat that I've seen. ## Features - Nullify - Imported - Digital 5-2 Day Programmable Thermostat for electric baseboards, convectors and fan-forced heaters. - The most accurate type of thermostat on the market (accuracy of ± 0.27 degreeF with baseboards and convectors). - TRIAC switching allows for 100 percent silent operation and unsurpassed temperature control that helps eliminate temperature swings. - 5-2 Day Programming allows for separate programs for the weekdays and weekends with 4 program periods per day including wake, leave, arrive and sleep. - 2-wire non-polarized connection means fast, hassle-free installation. - Backlit display for easy reading and instructions inside front panel enable quick, easy programming. - Temporary bypass enables temperature override without changing programming. - Line volt heating only (240V) including electric baseboards, convectors and fan-forced heaters. Also ideal for radiant ceilings. - Power maximum load: 3,500W @ 240V, 14.6 A resistive; Minimum load: 2 A resistive. - This thermostat is designed to control an electric heating system such as a baseboard heater, a radiant ceiling, a convector or a fan-forced heater. The thermostat CAN NOT be used with: a resistive load under 0.83, a resistive load over 14.6, a system driven by a contactor or a relay (inductive load), and a central heating system. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008DF626K | | Additional Features | Clock Display, Programmable, Temperature Display, Vacation Mode | | Backlight | Yes | | Best Sellers Rank | #113,391 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #140 in Home Programmable Thermostats | | Brand | Honeywell Home | | Brand Name | Honeywell Home | | Color | Whites | | Connectivity Technology | Wired | | Control Method | Touch | | Control Type | Button Control | | Controller Type | Push Button | | Customer Reviews | 4.3 out of 5 stars 1,299 Reviews | | Display Type | Digital | | Global Trade Identification Number | 00085267705783 | | Included Components | Rough Plumbing;Parts and Repair;replacement-water-heater-thermostats | | Item Dimensions D x W x H | 1.31"D x 4.75"W x 4.88"H | | Item Type Name | Rlv4305A1000/E 5-2 Day Programmable Thermostat, 240 V, 1 Deg F | | Item Weight | 0.75 Pounds | | Manufacturer | Honeywell Home | | Manufacturer Part Number | RLV4305A100 | | Manufacturer Warranty Description | 1 year limited warranty. | | Material Type | Plastic | | Model Name | 5-2 Day Programmable Thermostat for Electric Baseboard Heaters | | Model Number | RLV4305A1000/E1 | | Mounting Type | Baseboard | | Power Source | Electric | | Product Dimensions | 1.31"D x 4.75"W x 4.88"H | | Product Style | New | | Shape | Rectangular | | Special Feature | Clock Display, Programmable, Temperature Display, Vacation Mode | | Specific Uses For Product | Heater | | Specification Met | UL | | Temperature Control Type | Heating | | UPC | 085267705783 | | Unit Count | 1.0 Count | | Voltage | 240 Volts | | Wattage | 3500 watts | ## Product Details - **Brand:** Honeywell Home - **Controller Type:** Push Button - **Model Name:** 5-2 Day Programmable Thermostat for Electric Baseboard Heaters - **Product Dimensions:** 1.31"D x 4.75"W x 4.88"H - **Special Feature:** Clock Display, Programmable, Temperature Display, Vacation Mode ## Images ![RLV4305A1000 5-2 Day Programmable Thermostat for Electric Baseboard Heaters - Image 1](https://m.media-amazon.com/images/I/51YKWb3OzFL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Can this unit be set to allow a large temp. swing before turning on/off to maintain room temperature, rather than turning on/off every few seconds?** A: This has the ability to be used for wall fan units if this is what you are asking (meaning it won't turn on/off every couple seconds). It is in the settings (by default it is set for baseboards; meaning it will turn on/off regularly). After you install it, read the instructions and change to a fan unit. **Q: How many watts is the Honeywell RLV4305A1000/E 5-2 Day Programmable Thermostat for Electric Baseboard Heaters good for?** A: It's good for a resistive load up to 14.6 amp. The wattage will depend on whether it's 240v or 120v. Roughly 3500 W at 240V, 1750W at 120V, per the user's manual. It's only good for a resistive load like a baseboard heater, not an inductive load like a relay. **Q: buying this for a ski resort condo wher power outages are common and water pipes are prone to freezing. Will it automatically start after outages?** A: There is a built-in internal backup of the clock and program that is rated for five hours, and this feature has always worked for me as stated on my three units. I have frequent short power blips, and have never had to reset the clocks or programming. Also, even if the program and clock time are lost, the thermostat already has a DEFAULT safety temperature of 41F. That is, even if you don't set it or program it or otherwise tell it to come on, the thermostat will still try to run your heat if the temp in the room hits 41 degrees, to protect your pipes and such. In the settings, you can adjust the minimum "safety temperature" from 41 to something else, but, of course, if the power goes out long enough to clear the clock and settings, that setting would also revert back to the default 41. **Q: how do you install with four wires/two hot two nuetral to the two wires on thermostat** A: Greetings. Sorry, but I had electrician install- didn't see the setup of this particular device. Device should come with wiring diagrams ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well - But had to exchange the first one I bought. *by P***O on January 21, 2025* Firstly lets quickly get this out of the way. This is a LINE Voltage thermostat. The simplest way to describe this is -its a light switch.. just switches on when it hits the temp to kick of or off. So if you're seeing 3 or 4 super thin wires this isnt the right item for you... That being said - my home is basically a hot water boiler hooked up to 2 zones and zone control is either powering on or off these water circulators. Its just a simple 120v line. I replaced two analogue mercury style thermostats and hook up is straight forward and dummy proof. The first thing before you start the replacement ... TURN OFF the Power at the breaker! This is line voltage or 120v will be uncomfortable.. or if you're 240v... yeah don't want to touch a live wire there.... The thermostat is NOT polarity sensitive. That means you can join either the hot or neutral to either black wire - complete the circuit and shove everything back in. For me I used standard Wagos rather than nut connectors and replacing both thermostats was a breeze. I did have an issue with the FIRST one I bought from a big box store. The unit kept on rebooting which every 4 minutes throws out a 2.5 and 11.9 code. I tried to search what these codes mean but on the 2nd and replacement installs I noted i get these codes ON boot but the working ones just never showed those codes after boot. The Amazon shipped unit worked flawlessly and I was able to return to the big orange box store with no issues. So for anyone with LINE voltage heating or cooling - this is a great thermostat to program your wake up away and sleep ranges for the temps in the home. Better than 1 setting regardless of there is a human home or not. Super Easy DIY - just work safe! have fun!! ### ⭐⭐⭐⭐⭐ works great, silent, accurate *by A***Y on February 28, 2021* This review is for the "new" version, RLV4305A. I got this to control a 1200W Electric Radiant Cove Heater (QMark RCC12012C) that I installed to provide supplementary heat in a bedroom. For this project, a programmable thermostat was a requirement. If I let this radiant heater run continuously, it could cost me over $100/month in electricity, just to improve the heat in one room which I am mostly not in during the day. It really is silent. The box says it uses a TRIAC, which I learned is like a dimmer. So instead of clicking off when the room gets noticeably warm and clicking back on when it gets noticeably cold, this t-stat constantly raises and lowers the dimming level to tightly track the setpoint. There is some indication of this in the display, showing 0-5 heat wave squiggles, depending on how much power it allows through. The LCD display lights up when you press a button and stays lit for 10 seconds or so. Normally, it is completely dark. Without the backlight, it is still readable if there is enough ambient light, like during the day or with room lighting on. In normal use, it displays the current time and temp, mode and period, plus the squiggles mentioned above. Touching the temp up/down button once will show the set temp. Install is straight-forward if you are familiar with household electric service. This device is installed in series with the electric heater (like a wall switch) and modulates the line-voltage AC electricity that actually passes through both the thermostat and the heater(s). There are no low-voltage control lines here like a regular household thermostat has. I don't understand why there are 4 mounting holes in the unit. I used the 2 left holes with the 2 included screws to mount it to the left half of a 2-gang electrical box. I don't get why the other 2 right holes don't line up with the holes on the right side of the box, but even like this, it is plenty firm and secure and it completely covers the box opening. Programming is easy. "5-2" means you set separate Mon-Fri and Sat-Sun schedules, but nothing more sophisticated. By default, the M-F weekday schedule has 4 time periods (wake, leave, return, sleep) to program, but the Sat-Sun schedule only has 2 (wake, sleep). However, you can set times and temps for the 2 other Sat-Sun periods (leave, return) too. If you have a weird schedule you want to program, this might not be sufficient, but for most cases this should be good enough and easier to program. There are enough buttons with meaningful labels to make the work of programming it fairly easy. Rotate though the 8 periods with the "pgm" button, and change the time with the hr/min buttons and the temp with the up/down buttons. Finish/save by pressing the "⏎" button. Not rocket science. There is no "OFF" button or mode. "Manual" mode is a constant set temp like an old thermostat. The "Away" mode allows for a lower constant set temp (default 59f), presumably for extended time away from home. "Standby" mode is almost OFF, but it will turn on if the temp drops below 41f. In all the modes, it draws a tiny bit of power for itself. I have not tested this unit during an extended power outage, but it claims to remember the date/time for 5 hours or so without power. There is no battery compartment, so it must have something like a rechargeable battery or a big capacitor inside it. I'm very happy with the quality and the price is better than every other programmable line voltage thermostat that I've seen. ### ⭐⭐⭐⭐ When it works it's Great, but Quality Control and Customer Support need help. *by L***G on January 27, 2019* Since first purchasing an electric house 28 years ago I have searched from time to time for programmable thermostats to no avail. Recently I had a thermostat go wonky and I looked to replace it. Lo and behold I came across these and was overjoyed. So I ordered one. It went in easy, worked right away and I was happy. So I went and bought two more. Opened the first box and there was no hardware. Not a big deal as the hardware is two wire nuts (although you need three to install these) and two M2.5 X 0.45, 6mm long Phillips screws. Wire nuts I had, screws not any that were long enough, and neither did HomoDepot. So I e-mailed the manufacturer and after more then a week had not heard back. I gave up on them and started a return and ordered a replacement. In the meanwhile I went to install thermostat #3. It had the hardware, but it didn't work. Completely dead. OK, I'll use that hardware to install therm #2 (which I had not yet returned) and return #3 instead. So now I had two working and one going back. Then #4 arrived and that one had spastic fits. It powered on, the display went crazy and that was about all. So now another one has to go back and orders placed for two more. In total I purchased six thermostats and to be totally honest, of those two were brand new and four were amazon bargain basements. But it was one brand new one that was DOA, and one bargain basement that went haywire. And two in total that had no hardware. And in case you forgot about customer support, they did finally respond almost three weeks later and told me what type of screw I needed to go buy. I could tell them what to do with that screw but I've got better things to do with my time. The moral of my story, if you get one that works you are golden. I just hope they stay working. They do have a 1 year warranty but make sure you save the box, I have a feeling that's their loophole. ## Frequently Bought Together - Honeywell Home RLV4305A1000 5-2 Day Programmable Thermostat for Electric Baseboard Heaters - Honeywell Home RLV3120A1005 Digital Non-Programmable Thermostat, White - Honeywell Home CT410B Manual 4 Wire Premium Baseboard/Line Volt Thermostat CT410B1017 --- ## 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.gr/products/2336375-rlv4305a1000-5-2-day-programmable-thermostat-for-electric-baseboard-heaters](https://www.desertcart.gr/products/2336375-rlv4305a1000-5-2-day-programmable-thermostat-for-electric-baseboard-heaters) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-06-04*