Why My Electric Bill is High: Mitsubishi Mini Split Hyper Heat Review P4

Understanding the Costs and Benefits of the Mitsubishi Hyper Heat Mini-Split System


Greetings, YouTube! Today, we delve into a detailed discussion about the Mitsubishi Hyper Heat Mini-Split System. As a homeowner experimenting with this system, I recently received my latest electric bill from Eversource and found myself puzzled. The expenditures didn’t align with my expectations, making me want to explore why my bill was higher than anticipated despite careful usage of the Mini-Split system. So, let’s dig into the details and uncover why this may have occurred, including a comprehensive review of my electric bill and some reflections on the efficiency and benefits of the Mitsubishi system. Stick around, there’s plenty to unpack!


The context for my dilemma stems from the installation and usage patterns of the Mitsubishi Hyper Heat Mini-Split System. Our household, based in New Hampshire, comprises two Mitsubishi Hyper Heat units specifically assigned to the upstairs bedrooms—three in total but only two actively used lately. The primary heating downstairs is reliant on an oil heat system.

As of March 14, I’m standing in front of one of the units on a mild New Hampshire morning, wearing just a t-shirt—a testament to its heating effectiveness. Despite such efficient units, the electric bill still threw me off guard. Before diving into the numbers and the intricacies of the bill, let’s take a quick look at the overall performance and features of the system we have installed.

Mitsubishi Hyper Heat Mini-Split System Overview

The Mitsubishi Hyper Heat is renowned for its ability to deliver consistent and efficient heating even in colder climates. These systems are designed to maintain a warm and comfortable indoor environment without the extreme energy consumption traditionally associated with heating systems.

Key Features

  1. High Efficiency: Known for their high Seasonal Energy Efficiency Ratio (SEER), these systems can heat spaces effectively without skyrocketing energy costs.
  2. Quiet Operation: As demonstrated in multiple updates, these systems run remarkably quietly, creating a comfortable living environment without noise interference.
  3. Individual Room Temperature Control: Each unit can be tailored to personal comfort levels, allowing different rooms to maintain different temperatures efficiently.
  4. Easy Maintenance: The filtration system is designed for minimal maintenance, often requiring only occasional checks and cleaning.

Electric Bill Analysis

The Current Situation

Let’s dive into the crux of the matter—the electric bill. Last month’s bill was an astonishing $278.69, down from $435.59 in January. This decrease raised several questions as the usage of the Mini-Split system had decreased, shifting from full usage in January to partial use in February.

Understanding the Bill

Taking a closer look at the bill:

  • Electricity Rate: We are billed at approximately 16 cents per kilowatt-hour (kWh).
  • Consumption Patterns: The detailed consumption graph indicates higher usage during December and January, dropping in February.

High Consumption Variables

Several factors may have contributed to the high electric bill:

  1. Gaming Computer: A new high-performance gaming computer with a Ryzen 8-core CPU and gaming graphics card has been running extensively since Christmas. Gaming computers often draw significant power, contributing to higher electricity usage.
  2. House Insulation: The house has 2×4 construction on the perimeter, which means it’s not as well insulated as more modern homes that use 2×6 construction, making heating less efficient.
  3. General Household Usage: Incremental energy consumption during events like Christmas, where additional lighting and electricity usage might occur.

The Greater Context: Energy Efficiency Versus Cost

Seasonality and Efficiency

The Mitsubishi Hyper Heat system operates most efficiently during mild temperature conditions, which New Hampshire experiences particularly in the early spring and late fall. This period enables the heat pumps to perform optimally without excessive energy consumption. During extreme cold snaps, the efficiency can falter, necessitating supplementary heating sources.

User Behavior and Comfort Levels

Personal habits also play a significant role in energy consumption:

  • Temperature Preferences: My son prefers his room warmer at about 72-73 degrees Fahrenheit, whereas I maintain my room at a cooler 66 degrees for optimal sleeping conditions. This variance requires the system to work harder, especially with less insulation.
  • Usage Times: Late-night gaming sessions or extended use of electronics in different rooms also contribute to the higher energy usage.

Exploring Solutions

Improved Insulation

Given that the house has sub-par insulation:

  1. Upgrading Insulation: One of the first steps would be to improve the insulation, especially along the perimeter, to reduce heat loss and enhance the efficiency of the heating systems installed.
  2. Weatherstripping and Sealing: Additional steps could include weatherstripping doors and windows to minimize drafts.

Energy Monitoring

  1. Installation of Smart Meters: Deploying smart meters or energy monitoring devices would provide real-time data on electricity consumption, helping identify specific appliances contributing to high usage.
  2. Energy Audits: Conducting an in-depth energy audit could reveal additional inefficiencies within the household that can be rectified for better overall energy management.

Maintenance and Care

  1. Regular Filter Cleaning: While the Mitsubishi systems are relatively low-maintenance, ensuring filters are clean and free from dust can maintain optimal efficiency levels.
  2. Schedule Professional Inspections: Periodical inspections by professionals could preemptively address any potential issues with the system.

Energy-Saving Tips

  1. Optimized Heating Schedules: Utilizing programmable thermostats or timers to maintain optimal heating schedules can reduce unnecessary consumption.
  2. Mindful Electronic Usage: Powering down high-energy-consuming devices like gaming computers when not in use can considerably lower electrical consumption.
  3. Leveraging Natural Light and Heat: Taking advantage of natural daylight and heat by opening curtains during the day can help maintain warmth without additional energy consumption.

Future Perspective: Summer Performance

While current focus remains on the heating aspect of the Mitsubishi Hyper Heat system, there’s understandable excitement and curiosity about its performance in warmer months:

  • Cooling Efficiency: Given the promising heating characteristics, it’s anticipated to perform equally well in air conditioning roles.
  • Energy Consumption Trends: Summer bills will provide additional data points to understand overall seasonal efficiency and help balance expectations.


In conclusion, while the recent electric bill for the Mitsubishi Hyper Heat Mini-Split System raised eyebrows, a thorough exploration of the contributing factors provides clarity. Incremental usage, house insulation inefficiencies, and specific electronic devices emerged as significant influencers.

Despite the higher costs, the system’s ability to deliver consistent, comfortable warmth in a quiet and efficient manner remains valued. With adjustments in insulation, energy monitoring, and mindful usage, there’s potential to optimize cost savings without compromising comfort.

Your thoughts and suggestions are invaluable! Keep the comments coming, sharing your own experiences and solutions to similar dilemmas. Like, share, and subscribe for continual updates as we navigate home heating and cooling with the Mitsubishi Hyper Heat Mini-Split System. Until next time, stay cozy and energy-smart!

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