2 Best Rellytech Mini Splits Under $500, Compared
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
Finding the best rellytech mini splits under $500 requires a close look at the numbers. We compared 2 models using only the specifications published on the listings. The Rellytech 18000 BTU 230V Mini Split leads because its 19 SEER2 efficiency rating offers strong cooling power for medium rooms. This guide helps you decide which unit matches your space and performance needs based on hard data.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Rellytech 18000 BTU 230V Mini Split Best overall | Medium rooms needing strong cooling | Check price of Rellytech 18000 BTU 230V Mini Split on Amazon |
| 2 | Rellytech 17000 BTU 230V Mini Split Best budget | Medium rooms needing quiet, certified comfort | Check price of Rellytech 17000 BTU 230V Mini Split on Amazon |
The best fit for you
- You need strong cooling for medium rooms Rellytech 18000 BTU 230V Mini Split This 18000 BTU unit delivers high capacity for robust climate control.
- You want the most efficient model available Rellytech 18000 BTU 230V Mini Split Its 19 SEER2 rating offers superior energy efficiency compared to other options.
- You prefer a lighter indoor unit Rellytech 17000 BTU 230V Mini Split Weighing 78.1 pounds, it is significantly lighter than the top pick.
Our 2 picks
Rellytech 18000 BTU 230V Mini Split
Best for: Medium rooms needing strong cooling
- Cooling Capacity
- 18,000 BTU
- Efficiency Rating
- 19 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 1,250 sq. ft.
- Heat Pump
- Heat Pump
- Dimensions
- 9.02 × 40.4 × 12.6 inches
View on Amazon: Rellytech 18000 BTU 230V Mini Split Affiliate link
This Rellytech unit delivers 18,000 BTU of cooling and 18,400 BTU of heating for spaces up to 1,250 square feet. It operates on 208-230V power and achieves a 19 SEER2 efficiency rating. You get four operating modes and four fan speeds to adjust airflow. The system includes a heat pump for year-round comfort. It covers a larger area than the 17,000 BTU model on this list.
Pros
- 18,000 BTU cooling capacity
- 19 SEER2 energy efficiency rating
- Covers up to 1,250 sq. ft.
- Includes ECO mode for optimized energy use
Cons
- Lower efficiency than the 21 SEER2 variant in the same line
- No smart Wi-Fi connectivity listed
- Heavier build at 112 pounds
Good fit if
- You need strong cooling for a 1,250 sq. ft. room
- You prefer a standard 230V electrical connection
- You want basic manual controls without app complexity
Skip if
- You require Wi-Fi remote control capabilities
- You want the highest possible efficiency in this series
- You have a smaller space under 1,000 sq. ft.
Verdict: Rellytech 18000 BTU 19 SEER2 Mini Split suits homeowners who need reliable, high-capacity climate control for medium-sized rooms without needing smart features. It offers solid performance for the price bracket.
Rellytech 17000 BTU 230V Mini Split
Best for: Medium rooms needing quiet, certified comfort
- Cooling Capacity
- 17000 BTU
- Efficiency Rating
- 17 SEER2
- Voltage
- 208/230V
- Coverage Area
- up to 1050sq.ft
- Heat Pump
- Heat Pump
- Dimensions
- 12.2 × 31.9 × 9.5 inches
View on Amazon: Rellytech 17000 BTU 230V Mini Split Affiliate link
This Rellytech mini split delivers 17,000 BTU of cooling and heating for spaces up to 550 square feet. It operates on 230V power with a 17 SEER2 efficiency rating. The unit includes a heat pump and runs quietly at 29 dB. You get full installation support and ETL certification. It suits bedrooms or small offices where moderate capacity and reliable year-round comfort are your priorities.
Pros
- 17 SEER2 efficiency rating for energy savings
- Quiet operation down to 29 dB
- Heats and cools with heat pump technology
- ETL and AHRI certified for safety
- Works in temperatures from 5°F to 122°F
Cons
- Lower 17 SEER2 efficiency compared to 19 SEER2 models
- Smaller 17,000 BTU capacity than 18,000 BTU options
- No Wi-Fi or smart app control included
Good fit if
- You need a reliable 230V unit for a 550 sq ft space
- You prioritize quiet operation for sleeping areas
- You want certified safety standards without smart features
Skip if
- You require higher 19 SEER2 or 21 SEER2 efficiency
- You need more than 17,000 BTU of cooling power
- You want built-in Wi-Fi or app control
Verdict: Rellytech 17000 BTU Mini Split offers solid certified performance for medium-sized rooms. It fits buyers who value quiet, efficient operation over smart connectivity or maximum capacity.
Specifications side by side
| Spec | Rellytech 18000 BTU 230V Mini Split | Rellytech 17000 BTU 230V Mini Split |
|---|---|---|
| Cooling Capacity | 18,000 BTU | 17000 BTU |
| Efficiency Rating | 19 SEER2 | 17 SEER2 |
| Voltage | 208-230V | 208/230V |
| Coverage Area | Up to 1,250 sq. ft. | up to 1050sq.ft |
| Heat Pump | Heat Pump | Heat Pump |
| Dimensions | 9.02 × 40.4 × 12.6 inches | 12.2 × 31.9 × 9.5 inches |
| Weight | 112 pounds | 78.1 pounds |
| Size | 18000BTU,230V,19 SEER2 | 17000BTU,230V,17 SEER2 |
| Color | White | White |
| Model | CE0-1 | CE0-1 |
How to choose the right mini split
-
Match voltage to your panel
You must verify your home’s electrical panel before buying. Both listed models require 230V power. This is standard for higher capacity units. If your home only has 110V outlets, these units will not work without professional installation or panel upgrades. Check your breaker box specifications. Do not assume standard household outlets are sufficient. Using the wrong voltage can damage the compressor or void the warranty. Ensure your electrician confirms 230V availability for either the 18000 BTU or 17000 BTU option.
-
Compare SEER2 ratings carefully
SEER2 measures seasonal energy efficiency. Higher numbers mean lower electricity bills. The top pick offers 19 SEER2 efficiency. This is the highest rating in this guide. It suits buyers who run the unit frequently. The second option provides 17 SEER2 efficiency. It is still efficient but uses slightly more power. Compare these numbers against your local climate. If you live in a hot region, the 19 SEER2 model saves more energy over time. Check the rating on the label.
-
Check BTU for room size
BTU indicates cooling capacity. You need enough power to cool the space without short cycling. The 18000 BTU model delivers strong cooling for medium rooms. It handles larger heat loads better. The 17000 BTU unit is slightly less powerful. It still suits medium rooms but may struggle in very hot conditions. Match the BTU to your square footage. Too little power leaves you warm. Too much power causes humidity issues. Read the coverage guidelines in the manual.
-
Measure indoor unit dimensions
You need space for the wall-mounted indoor unit. The 18000 BTU model is wider at 39.6 inches. It also weighs 112 pounds. Ensure your wall can support this weight. The 17000 BTU unit is narrower at 31.9 inches. It weighs only 78.1 pounds. This lighter unit is easier to mount on standard drywall. Measure your intended wall space before ordering. Leave room for airflow and service access. Check the width and height on the spec sheet.
-
Verify installation requirements
These are not plug-and-play units. You need a licensed HVAC professional for installation. The 230V requirement means special wiring is necessary. You cannot use a standard outlet. The installer will handle refrigerant lines and electrical connections. Budget for professional labor costs. Do not attempt DIY installation. Improper setup voids the warranty and risks safety. Confirm your installer is familiar with mini split systems. Ask about the total installed price, including labor and materials.
Frequently asked questions
Which Rellytech mini split is the most efficient?
The Rellytech 18000 BTU 230V Mini Split is the most efficient option on this list. It features a 19 SEER2 efficiency rating, which is higher than the 17 SEER2 rating of the 17000 BTU model. This higher rating suggests better energy performance for medium-sized rooms that require strong cooling power.
Do these units require 230V power?
Yes, both listed Rellytech mini splits require 230V power. You must verify that your electrical panel supports this voltage before installation. These units are not compatible with standard 110V household outlets, so checking your home’s electrical setup is a necessary step for proper operation.
How much does the indoor unit weigh?
The weight depends on the specific model you choose. The 18000 BTU unit weighs 112 pounds, while the 17000 BTU model is lighter at 78.1 pounds. Both units are white and designed for wall mounting, so you should consider the mounting surface strength when planning the installation.
What is the best choice for quiet operation?
The Rellytech 17000 BTU 230V Mini Split is noted for quiet, certified comfort. It is positioned as the best option for buyers who prioritize efficient and quiet operation over maximum cooling capacity. This makes it suitable for medium rooms where noise levels are a primary concern.
Which model is best for medium rooms?
The Rellytech 18000 BTU 230V Mini Split is the best overall pick for medium rooms needing strong cooling. It offers high capacity and reliable climate control. The 17000 BTU model is also suitable for medium rooms, particularly if you value efficiency and quiet performance over raw power.
Are these units smart or app-controlled?
The provided specifications do not mention smart features, app control, or Wi-Fi connectivity for these models. They focus on solid performance and efficiency ratings. If smart home integration is a priority for you, you may need to look for other models that explicitly list these capabilities in their data.
What are the dimensions of the indoor unit?
The 18000 BTU unit measures 39.6 inches in width, 9.5 inches in height, and 12.4 inches in length. The 17000 BTU model is slightly narrower at 31.9 inches wide, with the same height and a similar depth of 12.2 inches. Both are white to blend with standard interior decor.
Is there a difference in model numbers?
Both listed products share the model designation CE0-1. Despite sharing the same model number, they differ significantly in capacity and size. The 18000 BTU version is larger and heavier, while the 17000 BTU version is more compact. Always check the BTU rating to ensure it matches your cooling needs.