---
product_id: 75913544
title: "Honeywell Rlv4305A1000/E 5-2 Day Programmable Thermostat, 240 V, 1 Deg F, Whites"
brand: "honeywell home"
price: "₨70806"
currency: LKR
in_stock: false
reviews_count: 5
url: https://www.desertcart.lk/products/75913544-honeywell-rlv4305a1000-e-5-2-day-programmable-thermostat-240-v
store_origin: LK
region: Sri Lanka
---

# 3500W max power 5-2 day programmable 100% silent TRIAC switching Honeywell Rlv4305A1000/E 5-2 Day Programmable Thermostat, 240 V, 1 Deg F, Whites

**Brand:** honeywell home
**Price:** ₨70806
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Stay cozy, save energy, and never miss a beat! ⚡

## Quick Answers

- **What is this?** Honeywell Rlv4305A1000/E 5-2 Day Programmable Thermostat, 240 V, 1 Deg F, Whites by honeywell home
- **How much does it cost?** ₨70806 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/75913544-honeywell-rlv4305a1000-e-5-2-day-programmable-thermostat-240-v)

## 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:** 2-wire non-polarized setup for quick, hassle-free mounting
- • **Whisper-Quiet Operation:** TRIAC switching eliminates annoying clicks
- • **Smart Temporary Override:** Bypass programming without losing your schedule
- • **Precision Heating Control:** ±0.27°F accuracy for ultimate comfort
- • **Tailored Weekly Scheduling:** Separate weekday & weekend programs with 4 daily periods

## Overview

The Honeywell RLV4305A1000/E is a high-precision, 5-2 day programmable thermostat designed for electric baseboards, convectors, radiant ceilings, and fan-forced heaters. Operating silently with TRIAC switching, it offers ±0.27°F accuracy and supports up to 3500W at 240V. Its user-friendly backlit display and simple 2-wire installation make it a top choice for efficient, customizable heating control.

## 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: I've not had this installed all that long, but the installation was straightforward, and it's working as expected. It's replacing a similar product, from a different manufacturer, that did not make it through it's third Winter of use [and only came with a 1 yr. warranty]. So far, I'm pleased. If it lasts five Winters, I'll really be pleased. One thing I do want to say: there were some reviews complaining about how difficult it was to set up and program this thermostat. If the least thing you do with any product is read the Instructions, you might have a bit of trouble with this. However, if you could read "Jack And The Beanstalk" to you child, and understood the story, read the instruction sheet and you can program the thermostat in 10 min. or less.
Review: 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

- 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 |
| Batteries Required? | No |
| Batteries included? | No |
| Certification | Energy Saving Thermostat |
| Colour | Whites |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,241) |
| Date First Available | 7 Sept. 2012 |
| Display style | Digital |
| Included Components | Rough Plumbing;Parts and Repair;replacement-water-heater-thermostats |
| Item Package Quantity | 1 |
| Item Weight | 340 g |
| Item model number | RLV4305A1000/E1 |
| Manufacturer | Honeywell Home |
| Material | Plastic |
| Number of handles | 1 |
| Part Number | RLV4305A100 |
| Plug profile | Baseboard |
| Power Source | Electric |
| Product Dimensions | 12.38 x 3.33 x 12.07 cm; 340.19 g |
| Shape | Rectangular |
| Special Features | Clock Display, Programmable, Temperature Display, Vacation Mode |
| Style | New |
| Type of Bulb | LED |
| Usage | Heater |
| Voltage | 240 Volts |
| Wattage | 3500 watts |

## Product Details

- **Brand:** Honeywell Home
- **Colour:** Whites
- **Connectivity technology:** Wired
- **Controller type:** Push Button
- **Included components:** Rough Plumbing;Parts and Repair;replacement-water-heater-thermostats
- **Model name:** 5-2 Day Programmable Thermostat for Electric Baseboard Heaters
- **Product dimensions:** 3.3D x 12.1W x 12.4H centimetres
- **Special feature:** Clock Display, Programmable, Temperature Display, Vacation Mode
- **Specific uses for product:** Heater
- **Temperature Control Type:** Heating

## Images

![Honeywell Rlv4305A1000/E 5-2 Day Programmable Thermostat, 240 V, 1 Deg F, Whites - Image 1](https://m.media-amazon.com/images/I/41Byb952E5L.jpg)
![Honeywell Rlv4305A1000/E 5-2 Day Programmable Thermostat, 240 V, 1 Deg F, Whites - Image 2](https://m.media-amazon.com/images/I/41rdxb-L4DL.jpg)
![Honeywell Rlv4305A1000/E 5-2 Day Programmable Thermostat, 240 V, 1 Deg F, Whites - Image 3](https://m.media-amazon.com/images/I/51W70KUM2JL.jpg)
![Honeywell Rlv4305A1000/E 5-2 Day Programmable Thermostat, 240 V, 1 Deg F, Whites - Image 4](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

### ⭐⭐⭐⭐⭐ Review
*by E***E on 5 February 2025*

I've not had this installed all that long, but the installation was straightforward, and it's working as expected. It's replacing a similar product, from a different manufacturer, that did not make it through it's third Winter of use [and only came with a 1 yr. warranty]. So far, I'm pleased. If it lasts five Winters, I'll really be pleased. One thing I do want to say: there were some reviews complaining about how difficult it was to set up and program this thermostat. If the least thing you do with any product is read the Instructions, you might have a bit of trouble with this. However, if you could read "Jack And The Beanstalk" to you child, and understood the story, read the instruction sheet and you can program the thermostat in 10 min. or less.

### ⭐⭐⭐⭐⭐ Review
*by A***Y on 28 February 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.

### ⭐⭐⭐⭐⭐ Review
*by R***O on 24 November 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.

## Frequently Bought Together

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-29*