---
product_id: 2336375
title: "Honeywell Home RLV4305A1000 5-2 Day Programmable Thermostat for Electric Baseboard Heaters"
brand: "honeywell home"
price: "13972 kr"
currency: ISK
in_stock: false
reviews_count: 8
url: https://www.desertcart.is/products/2336375-honeywell-home-rlv4305a1000-5-2-day-programmable-thermostat-for-electric
store_origin: IS
region: Iceland
---

# 3500W max power 100% silent TRIAC switching 5-2 day programmable Honeywell Home RLV4305A1000 5-2 Day Programmable Thermostat for Electric Baseboard Heaters

**Brand:** honeywell home
**Price:** 13972 kr
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Stay cozy, stay smart — control your comfort like a pro! ⚡

## Quick Answers

- **What is this?** Honeywell Home RLV4305A1000 5-2 Day Programmable Thermostat for Electric Baseboard Heaters by honeywell home
- **How much does it cost?** 13972 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/2336375-honeywell-home-rlv4305a1000-5-2-day-programmable-thermostat-for-electric)

## 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: A very accurate and great performing room heater thermlstat. - I have been using this thermostat now for about a month. If you have the skill to change an in wall light switch, you can install this thermostat. I use mine to control an oil filled roll around type radiator style space heater. You cannot use this thermostat, or any other external thermostat if your heating unit has a built in electronic control. Manual contols only! (switches & turnable more or less heat knob). This thermostat is completely quiet, fairly easy to enter settings, (read the instruction sheet until you understand) and controls room temperature within a degree. The room temperature showing on the display is not as accurate as the temperature control cirquit, and is an unimportant aspect of this very accurate controller. Want dead on RTD type reading? Triple the cost of this thermostat! Mine reads 2 degrees high. So I set it at 70 instead of 68°. What is important is the industrial accuracy RTD tyle lab calibration temperature sensor on my night stand.(I'm a retired Energy Management/Automation controls Engineer with 38 years experience) This thermostat works very well. 15 second cyle, 15 minute cycle? Fan, no fan? This thermostat uses one or the other methods to control the electric heating element. The 15 minute cycle is used with heaters that also have fans in them. It runs for upwards of 15 minutes and cycles off to maintain the temperature. The 15 second cycle only controls the heating element. It uses a solid state switch (triac) to pulse the heat element on or off to closely ccontrol the room temperature. At near setpoint, this unit pulses power at 1 second on, 14 seconds off. If the room is way below setpoint, the heater will be on continuosly untill the room temperature approaches the setpoint, then starts by pulsing 14 seconds on, 1 second off, all the way to completely off at setpoint. This is standard electric heating (no fan) control with much higher accuracy. Been around for 30 plus years, but very expensive untill the past few years. This kind of pulsing is harmless to heater elements. I used a shallow surface mount wall box, surface mount wire/cable wall guides (2), mounted box 5 feet above a wall outlet, used a 20 foot round, 3 prong extention cord. I cut the extension cord long enough to push the male (the part that plugs into the wall) up into the wall box, then pushed the remaing cable up the second channel guide into the wall box, connected the two white wires together and used appropriately sized twist caps. Connected the thermostat wires to each individual black extension cord wires. Thermostat is not polarized. Mount the thermostat to the wall box. Plug the extension cord from one of the cable guides into the wall outlet, the socket end of the extension cord is for the room heater male plug. Turn the heater switch(s) to high, heat knob to max. Many oil filled heaters cannot reject enough heat on high without overheating the unit! So manufacturers put overheat cutoffs to cycle the element off until it cools. JUST GREAT! This derates the heater from 5200 btu's to about 3000, maybe. That 1500 watt heater is really 800/900 watts. The specs. are on paper only. Solution: A 7 inch metal cage, fully rotatable 3 speed table fan. 1 programable timer. Place the fan on a side of the heater, angle it up towards the upper portion of the oil filled heater. Plug the fan into the timer, the timer into another wall outlet. Match the timer schedule to the thermostats schedule. The heater can now output all its heat indefinately. One on/off cycle should be adequate. Clean the fan on a regular basis. DO NOT CONNECT ALL FOUR BLACK WIRES TOGETHER AS ONE BIG TWISTED CONNECTION. Reader assumes ALL liabilities! How I did mine, and posting on desertcart reviews, is not to be taken as an instruction or direction on how to install, wire, or use this product with an electric heater. If you are not well versed in electrical theory and application, consult someone who is.
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!!

## Features

- 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 |
| Backlight | Yes |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #182,566 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #264 in Home Programmable Thermostats |
| Brand | Honeywell Home |
| Color | Whites |
| Connectivity Technology | Wired |
| Control Method | Touch |
| Control Type | Button Control |
| Controller Type | Push Button |
| Customer Reviews | 4.1 4.1 out of 5 stars (1,295) |
| Date First Available | June 21, 2012 |
| Display Type | Digital |
| Global Trade Identification Number | 00085267705783 |
| Included Components | Rough Plumbing;Parts and Repair;replacement-water-heater-thermostats |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 12 ounces |
| Item model number | RLV4305A1000/E1 |
| Manufacturer | Honeywell Home |
| Material | Plastic |
| Model Name | 5-2 Day Programmable Thermostat for Electric Baseboard Heaters |
| Mounting Type | Baseboard |
| Number of Handles | 1 |
| Part Number | RLV4305A100 |
| Power Source | Electric |
| Product Dimensions | 1.31"D x 4.75"W x 4.88"H |
| Shape | Rectangular |
| Special Feature | Clock Display, Programmable, Temperature Display, Vacation Mode |
| Special Features | Clock Display, Programmable, Temperature Display, Vacation Mode |
| Specific Uses For Product | Heater |
| Specification Met | UL |
| Style | New |
| Temperature Control Type | Heating |
| Type of Bulb | LED |
| UPC | 085267705783 |
| Voltage | 240 Volts |
| Warranty Description | 1 year limited warranty. |
| 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

![Honeywell Home RLV4305A1000 5-2 Day Programmable Thermostat for Electric Baseboard Heaters - Image 1](https://m.media-amazon.com/images/I/41Byb952E5L.jpg)
![Honeywell Home RLV4305A1000 5-2 Day Programmable Thermostat for Electric Baseboard Heaters - Image 2](https://m.media-amazon.com/images/I/41rdxb-L4DL.jpg)
![Honeywell Home RLV4305A1000 5-2 Day Programmable Thermostat for Electric Baseboard Heaters - Image 3](https://m.media-amazon.com/images/I/51YKWb3OzFL.jpg)

## 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

### ⭐⭐⭐⭐⭐ A very accurate and great performing room heater thermlstat.
*by R***O on November 24, 2014*

I have been using this thermostat now for about a month. If you have the skill to change an in wall light switch, you can install this thermostat. I use mine to control an oil filled roll around type radiator style space heater. You cannot use this thermostat, or any other external thermostat if your heating unit has a built in electronic control. Manual contols only! (switches & turnable more or less heat knob). This thermostat is completely quiet, fairly easy to enter settings, (read the instruction sheet until you understand) and controls room temperature within a degree. The room temperature showing on the display is not as accurate as the temperature control cirquit, and is an unimportant aspect of this very accurate controller. Want dead on RTD type reading? Triple the cost of this thermostat! Mine reads 2 degrees high. So I set it at 70 instead of 68°. What is important is the industrial accuracy RTD tyle lab calibration temperature sensor on my night stand.(I'm a retired Energy Management/Automation controls Engineer with 38 years experience) This thermostat works very well. 15 second cyle, 15 minute cycle? Fan, no fan? This thermostat uses one or the other methods to control the electric heating element. The 15 minute cycle is used with heaters that also have fans in them. It runs for upwards of 15 minutes and cycles off to maintain the temperature. The 15 second cycle only controls the heating element. It uses a solid state switch (triac) to pulse the heat element on or off to closely ccontrol the room temperature. At near setpoint, this unit pulses power at 1 second on, 14 seconds off. If the room is way below setpoint, the heater will be on continuosly untill the room temperature approaches the setpoint, then starts by pulsing 14 seconds on, 1 second off, all the way to completely off at setpoint. This is standard electric heating (no fan) control with much higher accuracy. Been around for 30 plus years, but very expensive untill the past few years. This kind of pulsing is harmless to heater elements. I used a shallow surface mount wall box, surface mount wire/cable wall guides (2), mounted box 5 feet above a wall outlet, used a 20 foot round, 3 prong extention cord. I cut the extension cord long enough to push the male (the part that plugs into the wall) up into the wall box, then pushed the remaing cable up the second channel guide into the wall box, connected the two white wires together and used appropriately sized twist caps. Connected the thermostat wires to each individual black extension cord wires. Thermostat is not polarized. Mount the thermostat to the wall box. Plug the extension cord from one of the cable guides into the wall outlet, the socket end of the extension cord is for the room heater male plug. Turn the heater switch(s) to high, heat knob to max. Many oil filled heaters cannot reject enough heat on high without overheating the unit! So manufacturers put overheat cutoffs to cycle the element off until it cools. JUST GREAT! This derates the heater from 5200 btu's to about 3000, maybe. That 1500 watt heater is really 800/900 watts. The specs. are on paper only. Solution: A 7 inch metal cage, fully rotatable 3 speed table fan. 1 programable timer. Place the fan on a side of the heater, angle it up towards the upper portion of the oil filled heater. Plug the fan into the timer, the timer into another wall outlet. Match the timer schedule to the thermostats schedule. The heater can now output all its heat indefinately. One on/off cycle should be adequate. Clean the fan on a regular basis. DO NOT CONNECT ALL FOUR BLACK WIRES TOGETHER AS ONE BIG TWISTED CONNECTION. Reader assumes ALL liabilities! How I did mine, and posting on Amazon reviews, is not to be taken as an instruction or direction on how to install, wire, or use this product with an electric heater. If you are not well versed in electrical theory and application, consult someone who is.

### ⭐⭐⭐⭐⭐ 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!!

### ⭐⭐⭐⭐ 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

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-05*