Business Logo for heating engineer

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This customer received 312 logo designs from 89 designers. They chose this logo design from MikeSmith as the winning design.
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Design a logo for a heating / boiler servicing company, Unsure whether I would prefer a logo or text based design.
The main undertaking of the company is the installation, service, and repair of oil and gas fired boilers, we do carry out a full plumbing service upon request but the main aspect of the business is boiler maintenance.
As detailed in the brief I am possibly interested in an emblem style logo or a wordmark logo, possibly incorporating McFerran Heating in a larger font with boiler services incorporated in smaller font beneath if that would work, for coulours I would possibly be considering a blue or an orange in colours although I am open to any colours that may enhance the logo,
Below is a link to the facebook page although it is not very active.
https://www.facebook.com/Mcferranheating2015/
I have attached some logos belonging to other companies which I like, although I am not set on the specific designs.
Updates
Project Deadline Extended
Reason: Additional designs that are in contention but need alteration
Added Monday, July 24, 2017
Target Market(s)
target market is homeowners within the local area. The reason for requesting a logo is for workwear, business cards, and vehicle signage, which will be placed on white vans
Industry/Entity Type
Plumber
Logo Text
G. McFerran Heating and boiler services
Logo styles of interest
Emblem Logo
Logo enclosed in a shape



Wordmark Logo
Word or name based logo (text only)


Colors
Colors selected by the customer to be used in the logo design:
Look and feel
Each slider illustrates characteristics of the customer's brand and the style your logo design should communicate.
Elegant
Bold
Playful
Serious
Traditional
Modern
Personable
Professional
Feminine
Masculine
Colorful
Conservative
Economical
Upmarket
Requirements
Must have
- Business name and possible some design relating to gas heating.
Nice to have
- The G can be placed within a flame type icon or similar, although not totally set in this idea